Re: [R] Bar Plots: Error Bars
Brett Hi Searching http://www.Rseek.org will return many similar results. You might find the following useful in terms of your question re aligning the bars: http://users.fmg.uva.nl/rgrasman/rpages/2005/09/error-bars-in-plots.html The discussion on this page also refers to the errbar function in the Hmisc package. There are other options, searching Rseek will provide many! Basically something along the lines of the following will 'fix' your graph: marks - sample(4:10, size=50, replace=TRUE) dim(marks) - c(10,5) classavg - colMeans (marks, na.rm=FALSE, dims = 1) thegraph - barplot(classavg, main=Class Average for Quizzes, xlab=Quiz, ylab=Average, names = c(1,2,3,4,5), ylim=c(0,12), axis.lty=1) str(thegraph) max - apply (marks, 2, max) min - apply (marks, 2, min) arrows(thegraph, min, thegraph, max, code=3, angle=90, length=0.125) HTH, Jeremy Hey Everyone, I'm pretty new at R and wanted to try and make some graphs with dummy data before using it to analyze my own. I successfully made a bar graph and error bars, but I can't figure out how to align them properly (currently they are not centered on the bars and some of them aren't even close). Here's the code that I'm using: marks - sample(4:10, size=50, replace=TRUE) dim(marks) - c(10,5) classavg - colMeans (marks, na.rm=FALSE, dims = 1) barplot(classavg, main=Class Average for Quizzes, xlab=Quiz, ylab=Average, names = c(1,2,3,4,5), ylim=c(0,12), axis.lty=1) box() max - apply (marks, 2, max) min - apply (marks, 2, min) arrows(1:5, min, 1:5, max, code=3, angle=90, length=0.125) The error bars are simply ranges for now (I wanted to do that before I tried standard deviation/error). If anyone could help me align them it would be much appreciated! brett --- Jeremy Baxter, Statistics Department, Rhodes University, South Africa. Views expressed above, no matter how badly spelt, are my own... I think? [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Normal tests disagree?
rkevinburton wrote: If I have data that I feed into shapio.test and jarque.bera.test yet they seem to disagree. What do I use for a decision? For my data set I have p.value of 0.05496421 returned from the shapiro.test and 0.882027 returned from the jarque.bera.test. I have included the data set below. The explanation is quite simple - different tests for normality concentrate on different aspects of nonnormality and so are sensitive to different kinds of departures from it. Your sample is distinctly non-normal looking, but in a way that the jarque-bera test is insensitive to (the sample skewness and kurtosis are entirely unremarkable, being well within the typical range of values from a normal sample). However, the shapiro-wilk test is quite sensitive to this form of departure form normality. To see what's going on, do: (i) a density plot of your data via plot(density(x)). In particular note that second mode in the upper tail. (ii) a qq-plot. The departure from linearity evident in the upper right is caused by that mode. shapiro test sees this nonlinearity (the shapiro-francia, an approximation to the shapiro wilk, is a function of the squared correlation of the two variables in this plot). (iii) compute sample skewness and kurtosis and their standard errors (the JB combines these into a single measure); formulas easily found via google search. They're both close to the middle of their distribution for sampling from a normal with n=59. Glen -- View this message in context: http://n4.nabble.com/Normal-tests-disagree-tp932615p947452.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Replying to Posts Within Same Thread
On Thu, Dec 3, 2009 at 1:15 AM, Ted Harding ted.hard...@manchester.ac.uk wrote: There is an issue which does not seem to have been raised yet in this thread. In her original post, Charlotte Maia said she was receiving messages in Digest form. There are two Digest options: Get MIME or Plain Text Digests? You can choose which one to use, if you opt for Digest format, when setting your subscription options in the R-help configuration page at https://stat.ethz.ch/mailman/options/r-help In a plain-text Digest, all the messages are bundled into a single message. Therefore when you reply to one of these you have to edit out everything except the bit you are replying to; and also the Thread-relevant headers of the original messages will heve been suppressed -- only headers for the Dugest message will be present, and these will have nothing to do with the threads that the separate original messages belonged to. On the other hand, in a MIME Digest, each of the original messages is attached as a separate attachment, along with its original headers. A mail agent which is MIME-Digest-aware will allow the user to open up each attachment separately, as a single message, and reply to that. Then the mail agent *should* incorporate these headers, including those which identify the thread. So, if you use Digest format, choose MIME Digest, and use a mail agent which works properly! Ted. Hi, I have changed my settings from plain text to MIME (doesn't apply to this post, which is a response to a regular email, with r-help on the cc line). We'll see how things go, if my future posts appear threaded properly then we can assume this was the issue. If not, then I'll keep playing around. Me being the old-school kind of computer geek that I am, naturally go for plain text... thanks to all those who responded to this topic -- Charlotte Maia http://sites.google.com/site/maiagx/home __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help: barchart() {Lattice}
On Thu, Dec 3, 2009 at 10:02 AM, Felix Andrews fe...@nfrac.org wrote: Either (1) use the 'alternating' option rather than 'relation' (see documentation for 'scales' argument); or (2) put 'rot' inside the 'y' list if you want it to apply only to the y axis. Or you can have scales = list(y = list(at = yScale, tck = c(1, 0))) All of this is in the documentation; it may be long, but reading it is still more efficient than trial and error. -Deepayan 2009/12/3 Peng Cai pengcaimaill...@gmail.com: Hi Felix and Others, I just realized, after using relation=free option, my y-axis labels got rotated by 90 degree. Previously they were horizontal and now they are vertical. I tried using rot= option but it rotates both x and y-axis labels at the same time. Any suggestions, I'm trying: scales = list(relation=free, rot=90, y = list(at = yScale)) Thanks, Peng On Wed, Dec 2, 2009 at 6:17 PM, Peng Cai pengcaimaill...@gmail.com wrote: Got it thanks, (relation=free worked), more specifically scales = list(relation=free, y = list(at = yScale)) On Wed, Dec 2, 2009 at 6:04 PM, Felix Andrews fe...@nfrac.org wrote: 2009/12/3 Peng Cai pengcaimaill...@gmail.com: Hi Felix, Thanks for your help. If I'm defining my own y-scales like the one in R code below, then can I remove right side tick marks? Yes. Look at the description of the scales argument in ?xyplot dta-read.table(data.txt, header=TRUE, row.names=Names) library(lattice) yScale - seq(-200, 200, 10) barchart(data.matrix(dta), horizontal=FALSE, stack=TRUE, par.settings = simpleTheme(col = 3:5), auto.key=list(space=right), border=NA, scales = list(y = list(at = yScale)) ) Thanks, Peng On Wed, Dec 2, 2009 at 5:44 PM, Felix Andrews fe...@nfrac.org wrote: 2009/12/3 Peng Cai pengcaimaill...@gmail.com: Hi R Users, I'm using following data/code (data is attached also) to produce a stacked barplot. # Sample Data: Names Col1 Col2 Col3 Row1 -20 40 -10 Row2 30 -20 40 Row3 30 10 -20 Row4 20 20 -10 # R Code: dta-read.table(data.txt, header=TRUE, row.names=Names) barchart(data.matrix(dta), horizontal=FALSE, stack=TRUE, par.settings = simpleTheme(col = 3:5), auto.key=list(space=right), border=NA ) I need help with: 1. How can I remove the (y-axis) tick marks on the right side of the plot. Since you only have one panel, try scales = free 2. While reading in the data, I'm using row.names=Names. Can I generalize this? What I mean is if for some other data set, the row names column has some other name (say Names2) or may be just blank. Can I still produce a similar graph plotting row labels (in this case they are Row1, Row2, ...) on x-axis. row.names can be a column number (1) See ?read.table It also describes the behaviour when the row names column is blank. Any help would be appreciated, Thanks, Peng __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Felix Andrews / 安福立 Postdoctoral Fellow Integrated Catchment Assessment and Management (iCAM) Centre Fenner School of Environment and Society [Bldg 48a] The Australian National University Canberra ACT 0200 Australia M: +61 410 400 963 T: + 61 2 6125 4670 E: felix.andr...@anu.edu.au CRICOS Provider No. 00120C -- http://www.neurofractal.org/felix/ -- Felix Andrews / 安福立 Postdoctoral Fellow Integrated Catchment Assessment and Management (iCAM) Centre Fenner School of Environment and Society [Bldg 48a] The Australian National University Canberra ACT 0200 Australia M: +61 410 400 963 T: + 61 2 6125 4670 E: felix.andr...@anu.edu.au CRICOS Provider No. 00120C -- http://www.neurofractal.org/felix/ -- Felix Andrews / 安福立 Postdoctoral Fellow Integrated Catchment Assessment and Management (iCAM) Centre Fenner School of Environment and Society [Bldg 48a] The Australian National University Canberra ACT 0200 Australia M: +61 410 400 963 T: + 61 2 6125 4670 E: felix.andr...@anu.edu.au CRICOS Provider No. 00120C -- http://www.neurofractal.org/felix/ __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained,
Re: [R] Bar Plots: Error Bars
Thanks so much! And those links are really useful :) brett Jeremy Baxter wrote: Brett Hi Searching http://www.Rseek.org will return many similar results. You might find the following useful in terms of your question re aligning the bars: http://users.fmg.uva.nl/rgrasman/rpages/2005/09/error-bars-in-plots.html The discussion on this page also refers to the errbar function in the Hmisc package. There are other options, searching Rseek will provide many! Basically something along the lines of the following will 'fix' your graph: marks - sample(4:10, size=50, replace=TRUE) dim(marks) - c(10,5) classavg - colMeans (marks, na.rm=FALSE, dims = 1) thegraph - barplot(classavg, main=Class Average for Quizzes, xlab=Quiz, ylab=Average, names = c(1,2,3,4,5), ylim=c(0,12), axis.lty=1) str(thegraph) max - apply (marks, 2, max) min - apply (marks, 2, min) arrows(thegraph, min, thegraph, max, code=3, angle=90, length=0.125) HTH, Jeremy Hey Everyone, I'm pretty new at R and wanted to try and make some graphs with dummy data before using it to analyze my own. I successfully made a bar graph and error bars, but I can't figure out how to align them properly (currently they are not centered on the bars and some of them aren't even close). Here's the code that I'm using: marks - sample(4:10, size=50, replace=TRUE) dim(marks) - c(10,5) classavg - colMeans (marks, na.rm=FALSE, dims = 1) barplot(classavg, main=Class Average for Quizzes, xlab=Quiz, ylab=Average, names = c(1,2,3,4,5), ylim=c(0,12), axis.lty=1) box() max - apply (marks, 2, max) min - apply (marks, 2, min) arrows(1:5, min, 1:5, max, code=3, angle=90, length=0.125) The error bars are simply ranges for now (I wanted to do that before I tried standard deviation/error). If anyone could help me align them it would be much appreciated! brett --- Jeremy Baxter, Statistics Department, Rhodes University, South Africa. Views expressed above, no matter how badly spelt, are my own... I think? [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- View this message in context: http://n4.nabble.com/Bar-Plots-Error-Bars-tp947407p947484.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How build hist combining data
I would like to ask if there is some simple way for building a hist from the following data. mm -c(2,3,0,4,5,0,2,9,0) mmm - matrix(mm,ncol=3, nrow=3) x - c(0,1.45,2.9) in mmm there are frequencies (each column is separate histogram and each row corresponds to value of x). So that for the first histogram we have 2 times interval [0,1.45] and 3 times [1.45,2.90]. Thanks a lot! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] How to check if file is on a drive?
Hello, everyone How would I check in R if a particular file (Excel file) is in a particular folder on a particular drive? I am writing a piece of code around that file, using xls.open() in xlsReadWritePro to open the file in memory and use it. But before I try to open the file I want to catch the possibility of the file not being on the drive. Thank you in advance! SG __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] How to check if file is on a drive?
?file.exists On 12/03/2009 11:31 AM, Sergey Goriatchev wrote: Hello, everyone How would I check in R if a particular file (Excel file) is in a particular folder on a particular drive? I am writing a piece of code around that file, using xls.open() in xlsReadWritePro to open the file in memory and use it. But before I try to open the file I want to catch the possibility of the file not being on the drive. Thank you in advance! SG -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://tr.im/Gq7i : ohloh |- http://tr.im/FtUu : new package : highlight `- http://tr.im/EAD5 : LondonR slides __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Avoiding singular fits in rlm
Matt Crawford wrote: I keep coming back to this problem of singular fits in rlm (MASS library), but cannot figure out a good solution. I am fitting a linear model with a factor variable, like lm( Y ~ factorVar) and this works fine. lm knows to construct the contrast matrix the way I would expect, which puts the first factor as the baseline level. But when I try rlm( Y ~ factorVar) I get the message 'x' is singular: singular fits are not implemented in rlm. Could it be that some level(s) of factorVar have no corresponding Y-values? Check with table(). -Peter Ehlers How can I solve this problem so that I can use factor variables in rlm? I've tried constructing the contrast matrix myself using the various contr functions, but I always run out of memory. So I must not be doing something right, because lm has to create some version of the same contrast matrix in memory. In any case, I don't think that more memory is the solution. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Bar Plots: Error Bars
Hi Brett, have you tried the function errbar, within the library Hmisc? It works pretty well for barplots. You have to specify the coordinates where error bars start (x and y), end then the ending points they end (yminus=y-error and yplus=y+error). The plotting function barplot2 within the library gplots allows you also to add error bars intrinsecally. Hope it helps! Jose 2009/12/3 bshan101 bshan...@gmail.com Hey Everyone, I'm pretty new at R and wanted to try and make some graphs with dummy data before using it to analyze my own. I successfully made a bar graph and error bars, but I can't figure out how to align them properly (currently they are not centered on the bars and some of them aren't even close). Here's the code that I'm using: marks - sample(4:10, size=50, replace=TRUE) dim(marks) - c(10,5) classavg - colMeans (marks, na.rm=FALSE, dims = 1) barplot(classavg, main=Class Average for Quizzes, xlab=Quiz, ylab=Average, names = c(1,2,3,4,5), ylim=c(0,12), axis.lty=1) box() max - apply (marks, 2, max) min - apply (marks, 2, min) arrows(1:5, min, 1:5, max, code=3, angle=90, length=0.125) The error bars are simply ranges for now (I wanted to do that before I tried standard deviation/error). If anyone could help me align them it would be much appreciated! brett -- View this message in context: http://n4.nabble.com/Bar-Plots-Error-Bars-tp947407p947407.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] How to check if file is on a drive?
Great! Thank you, Romain! On Thu, Dec 3, 2009 at 11:33, Romain Francois romain.franc...@dbmail.com wrote: ?file.exists On 12/03/2009 11:31 AM, Sergey Goriatchev wrote: Hello, everyone How would I check in R if a particular file (Excel file) is in a particular folder on a particular drive? I am writing a piece of code around that file, using xls.open() in xlsReadWritePro to open the file in memory and use it. But before I try to open the file I want to catch the possibility of the file not being on the drive. Thank you in advance! SG -- Romain Francois Professional R Enthusiast +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |- http://tr.im/Gq7i : ohloh |- http://tr.im/FtUu : new package : highlight `- http://tr.im/EAD5 : LondonR slides -- I'm not young enough to know everything. /Oscar Wilde Experience is one thing you can't get for nothing. /Oscar Wilde When you are finished changing, you're finished. /Benjamin Franklin Tell me and I forget, teach me and I remember, involve me and I learn. /Benjamin Franklin Luck is where preparation meets opportunity. /George Patten Kniven skärpes bara mot stenen. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] R help with princomp and pam clustering
Hi Tyler, sorry, I missed your response. Don't know if it's solved already, but some remarks. the predict uses a princomp object, so your second command should work. I guess the problem is either the data format of B (should contain exactly the same amount of columns, with the same names), or the cor specification you use. Try : Cor - ncol(pamX$data)!=2 Prin - princomp(matrix,cor=Cor) predict(Prin,B) It works perfectly well on every test I run. Cheers Joris On Fri, Nov 27, 2009 at 10:14 AM, Tyler82 procaccianti.clau...@gmail.com wrote: Hi JorisMeys and thanks! JorisMeys wrote: On Thu, Nov 26, 2009 at 1:04 AM, Tyler82 procaccianti.clau...@gmail.com wrote: Hi all! I am working with R package cluster and I have a little problem: let's say I have two datasets...first one (A) is divided into 4 clusters by means of Pam algorythm. Let's say I want to project the second database (B) onto the Comp.1 X Comp.2 graph, and see where its elements are placed. The two datasets are made of different dim (54x19 and 28x19). I tried to extract the $loadings of the A clustering but I can't seem to figure out how to use them with B :( Prin - princomp(A) predict(Prin,B) in the assumption that the variable names in both dataframes are equal. A and B are equal in column names (variables) but different in rownames (observations), but still it doesn't work. If I use A-princomp(matrix, cor=ncol(pamX$data)!=2)$loadings and then predict(A,B) then the answer is that there is no valid method (My R version is in Italian...the original message is -Errore in UseMethod(predict) : nessun metodo applicabile per predict- ) If I use A-princomp(matrix, cor=ncol(pamX$data)!=2) then it says the index is out of limit Thank you again!! -- View this message in context: http://old.nabble.com/R-help-with-princomp-and-pam-clustering-tp26522485p26539667.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] median for time data
Hi again. I´m sorry to ask again but I cannot do the boxplot coprrectly. I'm typing: start.posix=as.POSIXct(skiers[,3]) boxplot(start.posix) where skiers[,3] is my time data, and I get this error I have no idea of what that means.. All the other steps are ready, like the median of the time data, but Im really stock trying to do the boxplot with the time data on the y axis to interprete the median Thanks again Jannis v. Buttlar wrote: uvilla schrieb: When I use strptime() I just get NA NA NA I`m new at using R, must finisth this work thoug I guess Im doing totally wrong, actually everytime i try to use POSIXct it doesn`t work If you have a look at help(strptime) you find that you have to specify the format in which you time is written. Try strptime(08:10:10,%H:%M:%S) The stuff after the comma in the is the way to give strptime the format. Now you only have use strptime(vectorwithyourtime,%H:%M:%S) and you should get a vector with R format times out of it. It uses todays date though but for your calculations this should work. This POSIXct format is not very handy to use though, so you perhaps better consider using library(chron) as Gabor suggested. Thanks a lot Jannis wrote: Hi, try to convert this to the R time format POSIXct or POSIXlt via strptime(). Then you can simply substract them. I am not sure whether a median can be calculated though (should be possible as POSIXct stores the value as seconds since 1970) Best Jannis uvilla schrieb: Hi everybody How do I do to calculate the median and average of a colum of time data like this: 8:50:10. I also need to plot the time difference between two colums Thanks a lot __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. :-((:-(( -- View this message in context: http://n4.nabble.com/median-for-time-data-tp932287p947591.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Can we get rid of bar charts with error bars?
Bar charts with error bars are far inferior to dot charts and other types of displays. One of many problems is demonstrated if you draw a bar chart displaying temperature in F then re-draw it on the degrees C scale. See http://biostat.mc.vanderbilt.edu/DynamitePlots for much more information. The error bars lull us into an assumption that symmetric confidence intervals are OK, among other things. Frank -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] data manipulation
Dear Wiza[R]ds, I have a data.frame header that looks like this: v2FfaPre15v2FfaPre10v2FfaPre5v2Ffa2v2Ffa3v2Ffa4 I need it to look like this, 1510523 4 i.e., with v2FfaPre and v2Ffa stripped off Any suggestions, Thanks in advance! -- Oscar Oscar A. Linares, MD Translational Medicine Unit LaPlaisance Bay, Bolles Harbor Monroe, Michigan 48161 Department of Medicine, University of Toledo College of Medicine Toledo, OH 43606-3390 Department of Internal Medicine, The Detroit Medical Center (DMC) Harper University Hospital Wayne State University School of Medicine Detroit, Michigan 48201 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] data manipulation
try this:
x - c('v2FfaPre15','v2FfaPre10','v2FfaPre5','v2Ffa2',
'v2Ffa3','v2Ffa4')
sub(^.*?([0-9]+)$, \\1, x, perl=TRUE)
[1] 15 10 5 2 3 4
On Thu, Dec 3, 2009 at 9:00 AM, oscar linares wins...@gmail.com wrote:
Dear Wiza[R]ds,
I have a data.frame header that looks like this:
v2FfaPre15 v2FfaPre10 v2FfaPre5 v2Ffa2 v2Ffa3 v2Ffa4
I need it to look like this,
15 10 5 2 3 4
i.e., with v2FfaPre and v2Ffa stripped off
Any suggestions,
Thanks in advance!
--
Oscar
Oscar A. Linares, MD
Translational Medicine Unit
LaPlaisance Bay, Bolles Harbor
Monroe, Michigan 48161
Department of Medicine,
University of Toledo College of Medicine
Toledo, OH 43606-3390
Department of Internal Medicine,
The Detroit Medical Center (DMC)
Harper University Hospital
Wayne State University School of Medicine
Detroit, Michigan 48201
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--
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+1 513 646 9390
What is the problem that you are trying to solve?
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Re: [R] data manipulation
Try this: gsub(.*[^0-9], , header) On Thu, Dec 3, 2009 at 12:00 PM, oscar linares wins...@gmail.com wrote: Dear Wiza[R]ds, I have a data.frame header that looks like this: v2FfaPre15 v2FfaPre10 v2FfaPre5 v2Ffa2 v2Ffa3 v2Ffa4 I need it to look like this, 15 10 5 2 3 4 i.e., with v2FfaPre and v2Ffa stripped off Any suggestions, Thanks in advance! -- Oscar Oscar A. Linares, MD Translational Medicine Unit LaPlaisance Bay, Bolles Harbor Monroe, Michigan 48161 Department of Medicine, University of Toledo College of Medicine Toledo, OH 43606-3390 Department of Internal Medicine, The Detroit Medical Center (DMC) Harper University Hospital Wayne State University School of Medicine Detroit, Michigan 48201 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40 S 49° 16' 22 O __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] XML - ampersand escaped
Hi, I create some DOM with XML and would like to include cap; in the text of an element. The library automatically escapses it to amp;cap;. unescaping \\cap; does not help. any ideas? My current plan is to go through the output and replace it with gsub, but maybe there is a better way? thanks, ido library(XML) xml - xmlTree(tree) Warning message: In xmlRoot.XMLInternalDocument(currentNodes[[1]]) : empty XML document xml$addNode(test,a cap; b) xml$addNode(test,a \\cap; b) xml$value() ?xml version=1.0? tree testa amp;cap; b/test testa \amp;cap; b/test /tree __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] adding bmp/jpg/gif to an existing plot
Hi, all. I searched a lot at mailing list, installed EBImage and gtk packages, but I couldn't make this simple work: How to add a image file (jpg or bmp ou gif) to an existing plot window (not plot over the image), like the code below (pseudo function add.image): plot(1:10,1:10,main=test) image = read.X(myimage.jpg) add.image(image, x.left=2, y.bottom=4, size=40%) #points the left-bottom corner and the reative size of image abline(x=3, col=2, lwd=2) #continues editing the plot window. text(2,3,labels=example of graphics and image) Is it possible? Thanks, Cezar Freitas Veja quais são os assuntos do momento no Yahoo! +Buscados http://br.maisbuscados.yahoo.com [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] data manipulation
Try this where [0-9]+ matches one or more digits and $ matches the end of string. See http://gsubfn.googlecode.com for more. library(gsubfn) x - c(v2FfaPre15, v2FfaPre10, v2FfaPre5, v2Ffa2, v2Ffa3, v2Ffa4) strapply(x, [0-9]+$, c, simplify = TRUE) # or if you want a numeric result: strapply(x, [0-9]+$, as.numeric, simplify = TRUE) On Thu, Dec 3, 2009 at 9:00 AM, oscar linares wins...@gmail.com wrote: Dear Wiza[R]ds, I have a data.frame header that looks like this: v2FfaPre15v2FfaPre10v2FfaPre5v2Ffa2v2Ffa3v2Ffa4 I need it to look like this, 1510523 4 i.e., with v2FfaPre and v2Ffa stripped off Any suggestions, Thanks in advance! -- Oscar Oscar A. Linares, MD Translational Medicine Unit LaPlaisance Bay, Bolles Harbor Monroe, Michigan 48161 Department of Medicine, University of Toledo College of Medicine Toledo, OH 43606-3390 Department of Internal Medicine, The Detroit Medical Center (DMC) Harper University Hospital Wayne State University School of Medicine Detroit, Michigan 48201 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Acumulate assign on lapply list
Hi R users:
f1-function(l1,idx){
f2-function(i,l1) l1[[i+1]]-c(l1[[i]],l1[[i+1]][-1])
lapply(idx,f2,l1)
return(l1)
}
l-list(c(1,2,3),c(4,5),c(6,7,8))
l2-f1(l,1:(length(l)-1))
l2
I got:
[[1]]
[1] 1 2 3
[[2]]
[1] 1 2 3 5
[[3]]
[1] 4 5 7 8
But what I want in the last position of l2 is the acummualte of the
assignations...
I would like to have:
[[1]]
[1] 1 2 3
[[2]]
[1] 1 2 3 5
[[3]]
[1] 1 2 3 5 7 8
How can I do that?
Thank you for your help.
Kenneth
[[alternative HTML version deleted]]
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Can we get rid of bar charts with error bars?
Frank, the example on http://biostat.mc.vanderbilt.edu/DynamitePlots is nice, and I agree with you. Just one minor question: would it be possible to mention as An article with nice dot plots a paper, which is freely available? Heinz At 14:56 03.12.2009, Frank E Harrell Jr wrote: Bar charts with error bars are far inferior to dot charts and other types of displays. One of many problems is demonstrated if you draw a bar chart displaying temperature in F then re-draw it on the degrees C scale. See http://biostat.mc.vanderbilt.edu/DynamitePlots for much more information. The error bars lull us into an assumption that symmetric confidence intervals are OK, among other things. Frank -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] adding bmp/jpg/gif to an existing plot
Look at the R-devel development version of R o The graphics engine now supports rendering of raster (bitmap) images, though not all graphics devices can provide (full) support. Packages providing graphics devices (e.g., Cairo, RSvgDevice, cairoDevice) will need to be reinstalled. and http://developer.r-project.org/Raster/raster-RFC.html for more details (and older ways to do it less well). On Thu, 3 Dec 2009, Cézar Freitas wrote: Hi, all. I searched a lot at mailing list, installed EBImage and gtk packages, but I couldn't make this simple work: How to add a image file (jpg or bmp ou gif) to an existing plot window (not plot over the image), like the code below (pseudo function add.image): plot(1:10,1:10,main=test) image = read.X(myimage.jpg) add.image(image, x.left=2, y.bottom=4, size=40%) #points the left-bottom corner and the reative size of image abline(x=3, col=2, lwd=2) #continues editing the plot window. text(2,3,labels=example of graphics and image) Is it possible? Thanks, Cezar Freitas Veja quais s?? os assuntos do momento no Yahoo! +Buscados http://br.maisbuscados.yahoo.com [[alternative HTML version deleted]] -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595__ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Formatting of numbers on y axis
Hello all. I have the following: plot(salaries$yearID, salaries$salary, type='n', xaxt='n', xlab='', yaxt='n', ylab='') axis(1, at=unique(salaries$yearID), labels=unique(salaries$yearID), lwd=.25, tck=-0.05) axis(2, axTicks(2), format(axTicks(2), scientific = F)) Which nicely creates the Y axis with the raw numbers, which are in the range of .5 - 7 million. However, it displays them as 100, and so on- I'd like it to show just whole numbers 1, 2, 3, through 7, so I can label the Y axis in millions. Any tips? Thanks! -- Wells Oliver we...@submute.net [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] online.QTAFI: Online questionnaire environment (R supported)
R-help@r-project.orgDear lister, I am delighted to introduce you to an open souce software to make online survey/questionnaire. online.QTAFI has been developed by Martin Guist in INCHER-Kassel since 2003. The questionnaire data are also available to download in R script. More about online.QTAFI please visit the documentation site: http://www.hochschulforschung.uni-kassel.de/qtafidocs/ Best wishes, Bhina Patria [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] documentation of intersect() on string vector and num vector and on duplicated elements
-Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of David Winsemius Sent: Wednesday, December 02, 2009 3:25 PM To: Peng Yu Cc: r-h...@stat.math.ethz.ch Subject: Re: [R] documentation of intersect() on string vector and num vector and on duplicated elements I nominate the following as a fortune: If you are not going to read the help page, then please stop asking for corrections to it. David Winsemius, MD Heritage Laboratories West Hartford, CT When is the version of the fortunes package on R-Forge going to make it to CRAN? Thanks, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Replace values in a vector
Hi all, I have a vector like this: x- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8) I would like to replace the zero values with the first previous non zero value. my returning vector should look like this: y-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8) How can I do this in R without using for loop? Thank you __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] S4 Classes, nested objects and references
Hi all, I'm currently programming my first complete package in S4. (thanks to Christophe Genolini for the nice introduction he wrote). I have an object Data with a number of slots. One of those slots is meteo. Now Meteo is on itself a class with again a number of slots (like rainfall, temperature,..., you get the picture). I defined the slot meteo currently as a character slot, and the values refer to the names of the Meteo-objects related to that Data-object. The cleaner way would be to define the slot meteo as a slot of class Meteo, but I'm not sure how that works internally. Thing is, I have multiple Data objects that refer to the same Meteo object. I am a bit afraid that when I define the slot meteo as a slot of the corresponding class, each Data object will contain a complete copy of the Meteo object it relates to. This would mean that in the memory I will end up with multiple copies of exactly the same data. Although it is cleaner, it is definitely not more efficient. My question : Am I wrong in my assumption that I will have multiple copies in the memories? If yes, is it possible to use references in a more formal way than I do now? Or is there an obvious solution I am missing here? Thank you in advance Cheers Joris __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Replace values in a vector
na.locf in the zoo package takes the last occurrence and carries it forward into NAs so replace your zeros with NAs and then apply na.locf like this: library(zoo) na.locf(replace(x, x==0, NA)) On Thu, Dec 3, 2009 at 11:41 AM, Farida Mostajabi f0mos...@louisville.eduwrote: Hi all, I have a vector like this: x- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8) I would like to replace the zero values with the first previous non zero value. my returning vector should look like this: y-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8) How can I do this in R without using for loop? Thank you __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] (Grouped + Stacked) Barplot
A bar graph including both stacked and grouped bars will put lots of pretty colors on the page and probably be eyecatching, but is unlikely to be the most effective way to convey the actual meaning of the data. I would recommend that you explore other possibilities for doing the plot. A dot plot may give you what you want, see the dotchart2 function in the Hmisc package or the dotplot function in the lattice package. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of Xin Ge Sent: Wednesday, December 02, 2009 8:25 PM To: r-help@r-project.org Subject: [R] (Grouped + Stacked) Barplot Hi All, I have googled and tried finding if someone has ever tried producing (Grouped + Stacked) Barplot. I couldn't find one. My data needs to be reshaped, but once it is done it would be something like this: Factor1Factor2Factor3Value AXP10 AXQ20 AYP20 AYQ5 AZP20 AZQ10 BXP20 BXQ10 BYP30 BYQ50 BZP10 BZQ20 There are three categorical variables (Factor1, Factor2, and Factor3 having 2,3, and 2 levels resp.). I'm trying to plot Factor1 on x axis -- each level of this factor should have three (grouped) bars (one for each level of Factor2). Which will further be stacked by each level of Factor3. Can anyone guide me please, thanks, ~Xin [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Formatting of numbers on y axis
The problem is easily solved by plotting salaries$salary/100 Cheers Joris On Thu, Dec 3, 2009 at 5:16 PM, Wells Oliver we...@submute.net wrote: Hello all. I have the following: plot(salaries$yearID, salaries$salary, type='n', xaxt='n', xlab='', yaxt='n', ylab='') axis(1, at=unique(salaries$yearID), labels=unique(salaries$yearID), lwd=.25, tck=-0.05) axis(2, axTicks(2), format(axTicks(2), scientific = F)) Which nicely creates the Y axis with the raw numbers, which are in the range of .5 - 7 million. However, it displays them as 100, and so on- I'd like it to show just whole numbers 1, 2, 3, through 7, so I can label the Y axis in millions. Any tips? Thanks! -- Wells Oliver we...@submute.net [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] par() background issue
I have the following: par(bg='#CC', family='Lucida Grande') plot(salaries$yearID, salaries$salary/100) Which creates a graph with the correct offwhite/yellow background. However, I want the actual plot box to have a white background. par(bg='#CC', family='Lucida Grande') plot(salaries$yearID, salaries$salary/100, bg='#FF') But that does nothing. How can I accomplish this? Thanks! -- Wells Oliver we...@submute.net [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Replace values in a vector
WOW! It worked. Thank you! Gabor Grothendieck ggrothendi...@gmail.com 12/03/09 11:46 AM na.locf in the zoo package takes the last occurrence and carries it forward into NAs so replace your zeros with NAs and then apply na.locf like this: library(zoo) na.locf(replace(x, x==0, NA)) On Thu, Dec 3, 2009 at 11:41 AM, Farida Mostajabi f0mos...@louisville.eduwrote: Hi all, I have a vector like this: x- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8) I would like to replace the zero values with the first previous non zero value. my returning vector should look like this: y-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8) How can I do this in R without using for loop? Thank you __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Acumulate assign on lapply list
On Thu, 3 Dec 2009, KENNETH R CABRERA wrote:
Hi R users:
f1-function(l1,idx){
? f2-function(i,l1)?? l1[[i+1]]-c(l1[[i]],l1[[i+1]][-1])
? lapply(idx,f2,l1)
? return(l1)
}
l-list(c(1,2,3),c(4,5),c(6,7,8))
l2-f1(l,1:(length(l)-1))
l2
I got:
[[1]]
[1] 1 2 3
[[2]]
[1] 1 2 3 5
[[3]]
[1] 4 5 7 8
But what I want in the last position of l2 is the acummualte of the
assignations...
I would like to have:
[[1]]
[1] 1 2 3
[[2]]
[1] 1 2 3 5
[[3]]
[1] 1 2 3 5 7 8
How can I do that?
Reduce( function(x,y) c( x, y[-1] ) , l , accumulate=TRUE)
HTH,
Chuck
Thank you for your help.
Kenneth
[[alternative HTML version deleted]]
Charles C. Berry(858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cbe...@tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] Replace values in a vector
-Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Farida Mostajabi Sent: Thursday, December 03, 2009 8:41 AM To: r-help@r-project.org Subject: [R] Replace values in a vector Hi all, I have a vector like this: x- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8) I would like to replace the zero values with the first previous non zero value. my returning vector should look like this: y-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8) y is shorter than x. Shouldn't there be a run of 6 0.2s, not 5? How can I do this in R without using for loop? One way is isNotZero - function(x) !is.na(x) x!=0 f-function(x)x[cummax(seq_along(x) * isNotZero(x))] f(x) [1] 0.7 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.8 1.8 This one drops an initial run of 0's but could be adjusted to do something with them. Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com Thank you __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] adding bmp/jpg/gif to an existing plot
Look at the subplot function in the TeachingDemos package. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of Cézar Freitas Sent: Thursday, December 03, 2009 7:24 AM To: r-help@r-project.org Subject: [R] adding bmp/jpg/gif to an existing plot Hi, all. I searched a lot at mailing list, installed EBImage and gtk packages, but I couldn't make this simple work: How to add a image file (jpg or bmp ou gif) to an existing plot window (not plot over the image), like the code below (pseudo function add.image): plot(1:10,1:10,main=test) image = read.X(myimage.jpg) add.image(image, x.left=2, y.bottom=4, size=40%) #points the left- bottom corner and the reative size of image abline(x=3, col=2, lwd=2) #continues editing the plot window. text(2,3,labels=example of graphics and image) Is it possible? Thanks, Cezar Freitas ___ _ Veja quais são os assuntos do momento no Yahoo! +Buscados http://br.maisbuscados.yahoo.com [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] adding bmp/jpg/gif to an existing plot
Greg Snow wrote: Look at the subplot function in the TeachingDemos package. A copy of subplot is in the Hmisc package thanks to Greg. -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Replace values in a vector
Yes, should be 6 0.2. The code worked. Thank you! William Dunlap wdun...@tibco.com 12/03/09 12:07 PM -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Farida Mostajabi Sent: Thursday, December 03, 2009 8:41 AM To: r-help@r-project.org Subject: [R] Replace values in a vector Hi all, I have a vector like this: x- c(0.7, 0.1, 0, 0.2, 0.2, 0, 0, 0 , 0, 0.4, 0, 0.8, 1.8) I would like to replace the zero values with the first previous non zero value. my returning vector should look like this: y-c( 0.7, 0.1, 0.1,0.2,0.2,0.2,0.2,0.2, 0.4, 0.4, 0.8, 1.8) y is shorter than x. Shouldn't there be a run of 6 0.2s, not 5? How can I do this in R without using for loop? One way is isNotZero - function(x) !is.na(x) x!=0 f-function(x)x[cummax(seq_along(x) * isNotZero(x))] f(x) [1] 0.7 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.4 0.4 0.8 1.8 This one drops an initial run of 0's but could be adjusted to do something with them. Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com Thank you __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] median for time data
I fear nobody can really help you as we can not really understandd what your problem is. What does the error message read? What values does start.posix have? And what skiers? You should include the code for a reproducable example. include at least 2 values for skiers[,3] in their correct format and class, so we can run the code ourselves and check what is going on. Then we can (hopefully) help you. uvilla schrieb: Hi again. I´m sorry to ask again but I cannot do the boxplot coprrectly. I'm typing: start.posix=as.POSIXct(skiers[,3]) boxplot(start.posix) where skiers[,3] is my time data, and I get this error I have no idea of what that means.. All the other steps are ready, like the median of the time data, but Im really stock trying to do the boxplot with the time data on the y axis to interprete the median Thanks again Jannis v. Buttlar wrote: uvilla schrieb: When I use strptime() I just get NA NA NA I`m new at using R, must finisth this work thoug I guess Im doing totally wrong, actually everytime i try to use POSIXct it doesn`t work If you have a look at help(strptime) you find that you have to specify the format in which you time is written. Try strptime(08:10:10,%H:%M:%S) The stuff after the comma in the is the way to give strptime the format. Now you only have use strptime(vectorwithyourtime,%H:%M:%S) and you should get a vector with R format times out of it. It uses todays date though but for your calculations this should work. This POSIXct format is not very handy to use though, so you perhaps better consider using library(chron) as Gabor suggested. Thanks a lot Jannis wrote: Hi, try to convert this to the R time format POSIXct or POSIXlt via strptime(). Then you can simply substract them. I am not sure whether a median can be calculated though (should be possible as POSIXct stores the value as seconds since 1970) Best Jannis uvilla schrieb: Hi everybody How do I do to calculate the median and average of a colum of time data like this: 8:50:10. I also need to plot the time difference between two colums Thanks a lot __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. :-((:-(( __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] adding bmp/jpg/gif to an existing plot
Hi, all. I searched a lot at mailing list, installed EBImage and gtk packages, but I couldn't make this simple work: How to add a image file (jpg or bmp ou gif) to an existing plot window (not plot over the image), like the code below (pseudo function add.image): plot(1:10,1:10,main=test) image = read.X(myimage.jpg) add.image(image, x.left=2, y.bottom=4, size=40%) #points the left-bottom corner and the reative size of image abline(x=3, col=2, lwd=2) #continues editing the plot window. text(2,3,labels=example of graphics and image) Is it possible? Thanks, Cezar Freitas [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Problem with predict() and factors
I am working on a script that takes numeric performance indicators and runs
them against a series of regressors (dummy regressors, yes\no stuff via 0
and 1, e.g. Was is Christmas this week 0=no, 1=yes).
The script is as follows (Written as a function):
-- Begin Script --
doEnv - function(HOUR,ENVNAME,REPORTNAME) {
library(RODBC)
library(forecast)
library(geneplotter)
library(forecast)
library(fUtilities)
library(TSA)
require(gplots)
library(robfilter)
SOURCEDATA - paste(Q:/TEST/RSTATS/EPOC ,HOUR, Metrics.xls,sep=)
REGRESSORS - Q:/TEST/RSTATS/eventswithholidays.xls
mypalette=c()
mypalette$background=#FF
mypalette$chart=#FF
mypalette$forecastRegion=#66CCFF
mypalette$confidence=#FF9966
mypalette$limits=#FF
mypalette$major=#00
mypalette$minor=#cc
mypalette$actual=#aa
mypalette$dp1=#9900FF
mypalette$dp2=#00
mypalette$dp3=#CCFF00
mypalette$dp4=#00CCFF
mypalette$dp5=#FF00CC
#Raw Data
channel1 - odbcConnectExcel(SOURCEDATA)
sqlTables(channel1)
sh1 - sqlFetch(channel1, Actuals$)
close(channel1)
channel2 - odbcConnectExcel(REGRESSORS)
sqlTables(channel2)
sh2 - sqlFetch(channel2, data$)
close(channel2)
#Get Raw Data
tsSource-ts(sh1[[ENVNAME]],start=c(2004,1),freq=52)
#Data is now a Time Series
#Prep Out-of-sample test ranges
modLength=length(sh1[[ENVNAME]])
modMax=round((modLength/3)*2)
modEndDate=time(tsSource)[modMax]
modStartDate=time(tsSource)[1]
#RAW SUMAMRY WITH OVERLAY OF OUT OF SAMPLE RANGES
summary(tsSource)
modelSource=window(tsSource,modStartDate,end=modEndDate)
verSource=window(tsSource,time(tsSource)[modMax+1])
pdf(paste(Q:/ReleaseMgmt/Environment
Mgmt/Data/Current/Metrics/Mainframe/Test Environment
Projections/RSTATS/images/,ENVNAME,-,HOUR,-,Raw Metrics with Test
Range.pdf,sep=),width=9, height=6.5)
plot(tsSource,col=grey, main=paste(Raw Data for, REPORTNAME),
xlab=Date, ylab=MiPS Used)
points(modelSource,col=red, pch=20)
points(verSource,col=blue, pch=20)
smartlegend( x=left, y= top, inset=0,
#smartlegend parameters
legend = c(Actual Data,Data for Model Selection,Data for
In Sample Verification),
fill=c(mypalette$actual,red,blue),bg = mypalette$background)
print(The Red region is where we are going to develop the model from and
the blue area is where we will evaluate the model (In Sample Testing))
#Ok our ranges are comfirmed we'll get a better graph later
# This Heavy Voodoo allows us to have a dynamic number of
#dummy variables we can add\remove from the spreadsheet
forecastDistance - 52
#Grab Existing Regressors (clipping out the data)
cReg - sh2[1:modLength,-1]
mcReg - sh2[1:modMax,-1]
#transform the on\offs into proper factors
for(i in names(cReg)) cReg[[i]] - factor(cReg[[i]])
for(i in names(mcReg)) mcReg[[i]] - factor(mcReg[[i]])
#Grab X Future Regressors equal to the forecastDistance (gotta double check
if I need a +1 on the start point)
fReg - sh2[length(tsSource):(length(tsSource)+forecastDistance),-1]
mfReg -sh2[(modMax+1):modLength,-1]
#fix variable names
names(cReg) - make.names(names(cReg))
names(mcReg) - make.names(names(mcReg))
names(fReg) - make.names(names(fReg))
names(mfReg) - make.names(names(mfReg))
#print(#)
#print(This is the CReg Data)
#print(#)
#print(summary(cReg))
#print(##)
#print(This is the mcReg Data)
#print(##)
#print(summary(mcReg))
#names(mcReg)
for(i in names(fReg)) fReg[[i]] - factor(fReg[[i]])
for(i in names(mfReg)) mfReg[[i]] - factor(mfReg[[i]])
#end heavy voodoo
#
# MODEL VERIFICATION FIRST!
#
# Basic Look at the raw data
hist(modelSource)
plot(density(modelSource,na.rm=TRUE))
plot(sort(modelSource),pch=.)
for(i in names(mcReg)) {
pairs(modelSource ~ .,mcReg[[i]], main=paste(Model - MIPS vs,i))
}
#Build the list to store our results
linearModel - list()
residuals - list()
arima_Fit - list()
arima_AO - list()
arima_IO - list()
newcReg - list()
newfReg - list()
newmcReg - list()
newmfReg - list()
newFit - list()
newForecast - list()
# Following won't work until mcReg contains full variety
linearModel[[1]]=lm(modelSource ~ + UNITBUILD + UNITDB + ITBUILD + ITDB +
UATBUILD + UATDB + HOGANCODE + RCF + ReleaseST1 + ReleaseST2 + ReleaseBLA +
Small.Bank.Acquisitions + HLY.NewYear + HLY.MLK + HLY.PRES + HLY.MEMORIAL +
HLY.J4 + HLY.LABOR + HLY.COLUMBUS + HLY.VETS + HLY.THANKS + HLY.XMAS +
HLY.ELECT + HLY.PATRIOT + EOM,mcReg)
linearModel[[2]]=step(linearModel[[1]], trace=1)
linearModel[[3]]=lm(modelSource ~ + UNITBUILD + UNITDB + ITBUILD + ITDB +
UATBUILD + UATDB + HOGANCODE + RCF + ReleaseST1 + ReleaseST2 + ReleaseBLA +
Small.Bank.Acquisitions + HLY.NewYear + HLY.MLK + HLY.PRES + HLY.MEMORIAL +
HLY.J4 + HLY.LABOR + HLY.COLUMBUS + HLY.VETS + HLY.THANKS + HLY.XMAS +
HLY.ELECT + HLY.PATRIOT + EOM - 1,mcReg)
linearModel[[4]]=step(linearModel[[3]],trace=1)
if(ENVNAME==E081) {linearModel[[5]]=lm(modelSource ~ + UNITBUILD + UNITDB
+ HOGANCODE + RCF + ReleaseST1 + Small.Bank.Acquisitions + HLY.NewYear +
HLY.MLK + HLY.PRES +
Re: [R] Data frame/read.ftable
David,
Great! 'split' is something I didn't even look at. Owe you one.
Many thanks,
Dave
On 12/2/09 7:29 PM, David Winsemius dwinsem...@comcast.net wrote:
On Dec 2, 2009, at 7:02 PM, Robinson, David G wrote:
My apologies for this question but I'm stuck and I'm sure that there
must be
an easy answer out there (and hope that someone will have mercy and
point me
in the right direction).
I have a data file that looks like:
1 77 3
1 8 1
1 7 2
1 1 5
1 42 7
1 0 2
1 23 1
2 83 9
2 8 2
2 6 5
2 23 3
3 11 3
3 8 1
.
etc.
.
N 3 2
(FWIW, these are document, word reference, and word frequency
counts.) I
want to read the data into data frame, Doc, such that
Doc[[1]]=
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,]7787142023
[2,]3125 72 1
Doc[[2]]=
[,1] [,2] [,3] [,4]
[1,]838623
[2,]9253
Etc.
rd.txt - function(txt, header=TRUE) {read.table(textConnection(txt),
header=header)}
dta - rd.txt(1 77 3
+ 1 8 1
+ 1 7 2
+ 1 1 5
+ 1 42 7
+ 1 0 2
+ 1 23 1
+ 2 83 9
+ 2 8 2
+ 2 6 5
+ 2 23 3
+ 3 11 3
+ 3 8 1, header=F)
dta
V1 V2 V3
1 1 77 3
2 1 8 1
3 1 7 2
4 1 1 5
5 1 42 7
6 1 0 2
7 1 23 1
8 2 83 9
9 2 8 2
10 2 6 5
11 2 23 3
12 3 11 3
13 3 8 1
split(dta[ ,-1], list(dta[,1]))
$`1`
V2 V3
1 77 3
2 8 1
3 7 2
4 1 5
5 42 7
6 0 2
7 23 1
$`2`
V2 V3
8 83 9
9 8 2
10 6 5
11 23 3
$`3`
V2 V3
12 11 3
13 8 1
?split
lapply(split(dta[ ,-1], list(dta[,1])), t)
$`1`
1 2 3 4 5 6 7
V2 77 8 7 1 42 0 23
V3 3 1 2 5 7 2 1
$`2`
8 9 10 11
V2 83 8 6 23
V3 9 2 5 3
$`3`
12 13
V2 11 8
V3 3 1
It seems like I should be able to do this using a flat contingency
table
method such as 'read.ftable' or possibly using 'stack' . However,
something
is not clicking and hence my plea for assistance.
Thanks in advance,
Dave Robinson
dro...@sandia.gov
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
[[alternative HTML version deleted]]
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[R] count number of empty cells in a table/matrix/data.frame
Hi everyone! This is a ridiculously simple problem, I just can't seem to find the solution! All I need is something equivalent to sum(is.na(x)) but instead of counting missing values, to count empty cells (with a value of 0). A naive attempt with is.empty didn't work :) Thanks! Maja Oh, and if the proposed solution would be to make all the empty cells into missing cells, that is not an option! There are over 20,000,000 cells in my table, and I don't think my computer is in the mood to store two such objects! -- View this message in context: http://n4.nabble.com/count-number-of-empty-cells-in-a-table-matrix-data-frame-tp947740p947740.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] How to export a function from a package and access it only by specifying the namespace?
On 2009-12-02 16:31, Peng Yu wrote:
On Tue, Dec 1, 2009 at 11:27 PM, Sharpie ch...@sharpsteen.net wrote:
Peng Yu wrote:
Then I try the package 'try.package' in an R session. I'm wondering
why neither 'my_test_f' and 'try.package::my_test_f' work.
The error message you got below clearly explains this-- you did not export
my_test_f in your NAMESPACE file. To access unexported functions, you must
use the ':::' operator:
try.package:::my_test_f()
Peng Yu wrote:
Why 'my_test_g' can be accessed with 'try.package::' and without
'try.package::'?
Because you exported it in the NAMESPACE file.
Peng Yu wrote:
Is there a way to make 'my_test_g' accessible only by specifying the
namespace 'try.package::'?
No.
The purpose of the '::' operator is for those cases where multiple packages
are loaded that each export a function with the same name. This is known as
masking and the last loaded package will contribute the dominant
function-- i.e. the function the gets called when the user types
functionName() and not packageName::functionName(). The :: operator
allows the selection of functions that are masked by the dominant function.
If you really want to conceal a function from user-level code, don't export
it and it will only be accessible via the ::: operator.
Is there a way to list all the functions in a namespace? I tried the
following one, but it is not working.
showMethods(where=getNamespace('try.package'))
No applicable functions
You're almost there, and the above approach *is* working but only for S4
methods. Try
showMethods(where = e - getNamespace('stats4'))
I don't think there's a direct analogue for S3, but it that case you only do
ls(e)
HTH,
Henric
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[R] distance matrices
i'm working on some distance matrices and i was wondering if there is a way to export the matrices from R to excel. OG thanks [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Three-dimensional (3D) movement using 'R'
Hi Everyone,
I have a question regarding the construction of 3D graphs in 'R', BUT
these graphs also need to illustrate movement (with time) of the
prostate gland (using radiological techniques). I am not sure how to do
this in 'R' although I'm sure there is some way of doing it.
Below, I have copied and pasted some of the data with which I'm working
on. The data are for axial images of the prostate for four patients (N1,
N2, N3 and N4) over 20 time points. The numbers represent the average
amplitude of movement by the prostate gland in mm. The signs (positive
and negative) indicate movement away from or toward the baseline,
respectively. So, any deviation away from the baseline is '+' and any
excursion toward baseline is negative (with the baseline indicated by
Time=0).
I would like to plot 3D graphs illustrating movement of the prostate
with time for each of the four patients but do not know how. I am not an
expert in 'R' so any help will be very, very much appreciated.
Thanks.
Best wishes,
Suzanne
Time
N1
N2
N3
N4
0
0
0
0
0
1
121.8
-60.6
69.8
-122.6
2
19.9
-101.1
77.2
-142.9
3
19.9
-101.1
77.2
-120.4
4
19.9
-101.1
25.8
-131.1
5
44.2
-111.7
25.8
-128.6
6
44.2
-111.7
25.8
-305.7
7
50.5
-111.7
25.8
-232.4
8
75.8
-111.7
121.1
-201.8
9
63
-111.7
121.1
-201.8
10
3.3
-111.7
121.1
-201.8
11
38.9
-111.7
76.4
-175
12
38.9
-111.7
76.4
-175
13
-1.1
-111.7
76.4
-178.8
14
-103.1
-111.7
76.4
-176.2
15
-49.4
-111.7
76.4
-176.2
16
-80.6
-56.5
76.4
-176.2
17
-12.5
-94.7
-37.9
-171.6
18
-12.5
-94.7
-19.8
-186.4
19
-12.5
-94.7
-19.8
-241.1
20
-12.5
-59.4
9.8
-200
Suzanne St.Rose (DVM, MSc, PhD)
Statistician
Royal Marsden NHS Foundation Trust
Fulham Road
London SW3 6JJ
Telephone: 0207 808 2186
Email: suzanne.str...@rmh.nhs.uk
#
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[R] GLM Question
Hi to all I think this is more an general question to GLMs. The result was better in all prior GLMs when I admitted the non significant factors, but this is the first time that the result is worse than before. What could be the reason for that? glm(data1~data2+data3+data4+data5+data6,family=gaussian) The result: Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept)3.3670852 0.8978306 3.750 0.000445 *** data2 0.0002623 0.0001168 2.245 0.029024 * data3 -0.9742336 0.5032712 -1.936 0.058337 . data4 0.0628245 0.1503066 0.418 0.677686 data5 -0.0438871 0.0740210 -0.593 0.555818 data6$-0.0012216 0.0187702 -0.065 0.948357 if I test only or lm() of course glm(data1~data2,family=gaussian) Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept) 2.473e+00 2.787e-01 8.876 2.86e-12 *** data2 7.289e-05 7.485e-05 0.9740.334 Kind regards Knut __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] distance matrices
On Thu, 2009-12-03 at 11:06 -0700, Omar Gonzalez Post wrote: i'm working on some distance matrices and i was wondering if there is a way to export the matrices from R to excel. OG thanks If 'dij' is your dissimilarity matrix as a 'dist' object (special lower triangular representation) then this will write it out for you: write.csv(as.matrix(dij), file = foo.csv) If 'dij' is a square matrix, then write.csv(dij, file = foo.csv) will do it. I haven't used Excel for a while, but when I did, it had a restriction of 256 columns. If this restriction is still in place, the above file won't fit into Excel if you have more than 255 samples. HTH G [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% Dr. Gavin Simpson [t] +44 (0)20 7679 0522 ECRC, UCL Geography, [f] +44 (0)20 7679 0565 Pearson Building, [e] gavin.simpsonATNOSPAMucl.ac.uk Gower Street, London [w] http://www.ucl.ac.uk/~ucfagls/ UK. WC1E 6BT. [w] http://www.freshwaters.org.uk %~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~%~% __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Structural Equation Models(SEM)
Thank you Jeremy for your information. The world is changing though. We live in an increasing economic pressure. One symptom is that we are forced to use smaller samples for economy. This explains the interest for research in how the methods perform on small samples. The cited large simulation study shows GLS is more efficient for small and badly distributed samples. So perhaps it would be worth the effort to make an addition to sem(sem) Yours Ralf Finne Emeritus Novia University of Applied Science Vasa Finland Jeremy Miles jeremy.mi...@gmail.com 12/02/09 8:22 PM In the world of SEM, GLS has pretty much fallen by the wayside - I can't recall anything I've seen arguing for it's use in the past 10 years, and I also can't recall anyone using it over ML. The recommendations for non-normal distributions tend to be robust-ML, or robust weighted least squares. These are more computationally intensive, and I *think* that John Fox (author of sem) has written somewhere that it wouldn't be possible to implement them within R, without using a lower level language - or rather that it might be possible, but it would be really, really slow. However, ML and GLS are pretty similar, if you dug around in the source code, you could probably make the change (see, http://www2.gsu.edu/~mkteer/discrep.html for example, for the equations; in fact GLS is somewhat computationally simpler, as you don't need to invert the implied covariance matrix at each iteration). However, the fact that it's not hard to make the change, and that no one has made the change, is another argument that it's not a change that needs to be made. Jeremy 2009/12/2 Ralf Finne ralf.fi...@novia.fi: Hi R-colleagues. I have been using the sem(sem) function. It uses maximum likelyhood as optimizing. method. According to simulation study in Umeå Sweden (http://www.stat.umu.se/kursweb/vt07/stad04mom3/?download=UlfHolmberg.pdf Sorry it is in swedish, except the abstract) maximum likelihood is OK for large samples and normal distribution the SEM-problem should be optimized by GLS (Generalized Least Squares). So to the question: Is there any R-function that solves SEM with GLS? Ralf Finne Novia University of Applied Science Vasa Finland __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jeremy Miles Psychology Research Methods Wiki: www.researchmethodsinpsychology.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] count number of empty cells in a table/matrix/data.frame
If you only want to count cells that are exactly 0.0 (not slightly different due to rounding errors) then try: sum( x==0 ) If you want a little wiggle room for rounding error, then you can try something like: sum( -0.001 x x 0.001 ) Adjusting the number of 0's as you see fit. Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of maiya Sent: Thursday, December 03, 2009 9:29 AM To: r-help@r-project.org Subject: [R] count number of empty cells in a table/matrix/data.frame Hi everyone! This is a ridiculously simple problem, I just can't seem to find the solution! All I need is something equivalent to sum(is.na(x)) but instead of counting missing values, to count empty cells (with a value of 0). A naive attempt with is.empty didn't work :) Thanks! Maja Oh, and if the proposed solution would be to make all the empty cells into missing cells, that is not an option! There are over 20,000,000 cells in my table, and I don't think my computer is in the mood to store two such objects! -- View this message in context: http://n4.nabble.com/count-number-of- empty-cells-in-a-table-matrix-data-frame-tp947740p947740.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] GLM Question
Knut Krueger r...@krueger-family.de wrote I think this is more an general question to GLMs. The result was better in all prior GLMs when I admitted the non significant factors, but this is the first time that the result is worse than before. What could be the reason for that? glm(data1~data2+data3+data4+data5+data6,family=gaussian) The result: Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept)3.3670852 0.8978306 3.750 0.000445 *** data2 0.0002623 0.0001168 2.245 0.029024 * data3 -0.9742336 0.5032712 -1.936 0.058337 . data4 0.0628245 0.1503066 0.418 0.677686 data5 -0.0438871 0.0740210 -0.593 0.555818 data6$-0.0012216 0.0187702 -0.065 0.948357 if I test only or lm() of course glm(data1~data2,family=gaussian) Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept) 2.473e+00 2.787e-01 8.876 2.86e-12 *** data27.289e-05 7.485e-05 0.9740.334 What do you mean by better? Do you mean data2 was significant in one model and not the other? How is this better? The two models ask different questions, so, they get different answers. The first, more complex model, asks (re data2) what its relationship to data1 is, controlling for the other variables. The second model asks for uncontrolled. Hope this helps Peter Peter L. Flom, PhD Statistical Consultant Website: www DOT peterflomconsulting DOT com Writing; http://www.associatedcontent.com/user/582880/peter_flom.html Twitter: @peterflom __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Help R2WinBUGS
TTsai wrote:
Hello,
I have problem running WinBUGS from R.
The following example works in WinBUGS but it does not work in R through
package R2WinBUGS.
Works for me. What is the error message you get?
Best wishes,
Uwe Ligges
Does anyone know what the problem is?
x - c(0.2, 1.1, 1, 2.2, 2.5, 2.9, 2.9, 3.6, 3.8, 0.6, 1, 2, 2.4, 2.6, 2.8,
3.2, 3.9, 3.5)
y - c(0.5, 1.3, 0.1, 0.7, -0.4, 0.5, -0.9, -0.3, -0.3, 0.6, 0.4, 0.9, -0.1,
-0.4, -0.5, -0.2, 0.3, -1.5)
eco - c(1, 3, 1, 2, 1, 2, 1, 1, 2, 1, 1, 3, 2, 3, 2, 2, 2, 1)
N - length(y)
J - length(unique(eco))
f.data - list(N, y, x, eco, J)
f.inits - function(){
list(sigma.y=1, beta.0=1, beta.x=1, beta.eco=c(NA, 1, 1))}
f.parameters - c(beta.0, beta.x, sigma.y, beta.eco)
f.ml - bugs (data=f.data,
inits=f.inits,
parameters.to.save=f.parameters,
model.file=oecd1.bug,
n.chains=3,
n.iter=1000,
debug=TRUE)
# This code works in WinBUGS.
model {
# dummy variable
for (i in 1:N){
D.eco2[i] - equals(eco[i],2)
D.eco3[i] - equals(eco[i],3)
}
# model's likelihood
for (i in 1:N){
y[i] ~ dnorm (mu[i], tau.y)
mu[i] - beta.0 + beta.x*x[i] + beta.eco[2]*D.eco2[i] +
beta.eco[3]*D.eco3[i]
}
#
beta.eco[1] - 0
# priors
beta.0 ~ dnorm (0, 0.0001)
beta.x ~ dnorm (0, 0.0001)
for (j in 2:J){
beta.eco[j] ~ dnorm (0, 0.0001)
}
tau.y - pow(sigma.y, -2)
sigma.y ~ dunif (0, 100)
}
DATA
list(N=18, J=3,
x = c(0.2, 1.1, 1, 2.2, 2.5, 2.9, 2.9, 3.6, 3.8, 0.6, 1, 2, 2.4, 2.6, 2.8,
3.2, 3.9, 3.5),
y = c(0.5, 1.3, 0.1, 0.7, -0.4, 0.5, -0.9, -0.3, -0.3, 0.6, 0.4, 0.9, -0.1,
-0.4, -0.5, -0.2, 0.3, -1.5),
eco = c(1, 3, 1, 2, 1, 2, 1, 1, 2, 1, 1, 3, 2, 3, 2, 2, 2, 1)
)
INITIAL VALUES
list(sigma.y=1, beta.0=1, beta.x=1, beta.eco=c(NA, 1, 1))
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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Re: [R] Three-dimensional (3D) movement using 'R'
On Dec 3, 2009, at 7:59 AM, StRose, Suzanne wrote:
Hi Everyone,
I have a question regarding the construction of 3D graphs in 'R', BUT
these graphs also need to illustrate movement (with time) of the
prostate gland (using radiological techniques). I am not sure how
to do
this in 'R' although I'm sure there is some way of doing it.
Below, I have copied and pasted some of the data with which I'm
working
on.
From an unspecified software format?
The data are for axial images of the prostate for four patients (N1,
N2, N3 and N4) over 20 time points.
You (and we readers) would be better served with the output of dput on
the R object. That way you would not deliver an impossible-to-decode-
list-of-solitary-numbers, which are now showing up along the left
margin of the email that gets sent out from the list-server.
--
David.
The numbers represent the average
amplitude of movement by the prostate gland in mm. The signs (positive
and negative) indicate movement away from or toward the baseline,
respectively. So, any deviation away from the baseline is '+' and any
excursion toward baseline is negative (with the baseline indicated by
Time=0).
I would like to plot 3D graphs illustrating movement of the prostate
with time for each of the four patients but do not know how. I am
not an
expert in 'R' so any help will be very, very much appreciated.
Thanks.
Best wishes,
Suzanne
Time
N1
N2
N3
N4
0
0
0
0
0
1
121.8
-60.6
69.8
-122.6
2
19.9
-101.1
77.2
-142.9
3
19.9
-101.1
77.2
-120.4
4
19.9
-101.1
25.8
-131.1
5
44.2
-111.7
25.8
-128.6
6
44.2
-111.7
25.8
-305.7
7
50.5
-111.7
25.8
-232.4
8
75.8
-111.7
121.1
-201.8
9
63
-111.7
121.1
-201.8
10
3.3
-111.7
121.1
-201.8
11
38.9
-111.7
76.4
-175
12
38.9
-111.7
76.4
-175
13
-1.1
-111.7
76.4
-178.8
14
-103.1
-111.7
76.4
-176.2
15
-49.4
-111.7
76.4
-176.2
16
-80.6
-56.5
76.4
-176.2
17
-12.5
-94.7
-37.9
-171.6
18
-12.5
-94.7
-19.8
-186.4
19
-12.5
-94.7
-19.8
-241.1
20
-12.5
-59.4
9.8
-200
Suzanne St.Rose (DVM, MSc, PhD)
Statistician
Royal Marsden NHS Foundation Trust
Fulham Road
London SW3 6JJ
Telephone: 0207 808 2186
Email: suzanne.str...@rmh.nhs.uk
#
Attention:\ This e-mail and any attachment is for author...{{dropped:
19}}
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and provide commented, minimal, self-contained, reproducible code.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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Re: [R] Three-dimensional (3D) movement using 'R'
On 03/12/2009 7:59 AM, StRose, Suzanne wrote:
Hi Everyone,
I have a question regarding the construction of 3D graphs in 'R', BUT
these graphs also need to illustrate movement (with time) of the
prostate gland (using radiological techniques). I am not sure how to do
this in 'R' although I'm sure there is some way of doing it.
Below, I have copied and pasted some of the data with which I'm working
on. The data are for axial images of the prostate for four patients (N1,
N2, N3 and N4) over 20 time points. The numbers represent the average
amplitude of movement by the prostate gland in mm. The signs (positive
and negative) indicate movement away from or toward the baseline,
respectively. So, any deviation away from the baseline is '+' and any
excursion toward baseline is negative (with the baseline indicated by
Time=0).
I would like to plot 3D graphs illustrating movement of the prostate
with time for each of the four patients but do not know how. I am not an
expert in 'R' so any help will be very, very much appreciated.
The rgl package allows you to put together 3D graphs, but the big issue
is designing them. Do you know what you want it to look like?
Duncan Murdoch
Thanks.
Best wishes,
Suzanne
Time
N1
N2
N3
N4
0
0
0
0
0
1
121.8
-60.6
69.8
-122.6
2
19.9
-101.1
77.2
-142.9
3
19.9
-101.1
77.2
-120.4
4
19.9
-101.1
25.8
-131.1
5
44.2
-111.7
25.8
-128.6
6
44.2
-111.7
25.8
-305.7
7
50.5
-111.7
25.8
-232.4
8
75.8
-111.7
121.1
-201.8
9
63
-111.7
121.1
-201.8
10
3.3
-111.7
121.1
-201.8
11
38.9
-111.7
76.4
-175
12
38.9
-111.7
76.4
-175
13
-1.1
-111.7
76.4
-178.8
14
-103.1
-111.7
76.4
-176.2
15
-49.4
-111.7
76.4
-176.2
16
-80.6
-56.5
76.4
-176.2
17
-12.5
-94.7
-37.9
-171.6
18
-12.5
-94.7
-19.8
-186.4
19
-12.5
-94.7
-19.8
-241.1
20
-12.5
-59.4
9.8
-200
Suzanne St.Rose (DVM, MSc, PhD)
Statistician
Royal Marsden NHS Foundation Trust
Fulham Road
London SW3 6JJ
Telephone: 0207 808 2186
Email: suzanne.str...@rmh.nhs.uk
#
Attention:\ This e-mail and any attachment is for author...{{dropped:19}}
__
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and provide commented, minimal, self-contained, reproducible code.
__
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] Two-way/Three-way sum.
Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. Also, I may need to calculate mean value along with sum. Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
?tapply -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of Peng Cai Sent: Thursday, December 03, 2009 11:50 AM To: r-help@r-project.org Subject: [R] Two-way/Three-way sum. Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. Also, I may need to calculate mean value along with sum. Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
try this: x State Month Year Value 1 NC Jan 1996 1 2 NC Jan 1996 2 3 NC Feb 1997 2 4 NC Feb 1997 3 5 NC Mar 1998 3 6 NC Mar 1998 4 7 NY Jan 1996 4 8 NY Jan 1996 5 9 NY Feb 1997 5 10NY Feb 1997 6 11NY Mar 1998 6 12NY Mar 1998 7 tapply(x$Value, list(x$State, x$Year), sum) 1996 1997 1998 NC357 NY9 11 13 tapply(x$Value, list(x$State, x$Year, x$Month), sum) , , Feb 1996 1997 1998 NC NA5 NA NY NA 11 NA , , Jan 1996 1997 1998 NC3 NA NA NY9 NA NA , , Mar 1996 1997 1998 NC NA NA7 NY NA NA 13 On Thu, Dec 3, 2009 at 1:50 PM, Peng Cai pengcaimaill...@gmail.com wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. Also, I may need to calculate mean value along with sum. Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
Hi Peng, Here is a suggestion using tapply: R with(x, tapply(Value, list(State, Month), FUN = sum)) R with(x, tapply(Value, list(State, Year), FUN = sum)) R with(x, tapply(Value, list(State, Year, Month), FUN = sum)) with 'x' your data set. Please take a look at ?tapply for more information. Another useful functions might be ?ave and ?aggregate. Best, Jorge On Thu, Dec 3, 2009 at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. Also, I may need to calculate mean value along with sum. Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
Thanks Greg, Jorge, and Jim for your help. Peng On Thu, Dec 3, 2009 at 1:58 PM, jim holtman jholt...@gmail.com wrote: try this: x State Month Year Value 1 NC Jan 1996 1 2 NC Jan 1996 2 3 NC Feb 1997 2 4 NC Feb 1997 3 5 NC Mar 1998 3 6 NC Mar 1998 4 7 NY Jan 1996 4 8 NY Jan 1996 5 9 NY Feb 1997 5 10NY Feb 1997 6 11NY Mar 1998 6 12NY Mar 1998 7 tapply(x$Value, list(x$State, x$Year), sum) 1996 1997 1998 NC357 NY9 11 13 tapply(x$Value, list(x$State, x$Year, x$Month), sum) , , Feb 1996 1997 1998 NC NA5 NA NY NA 11 NA , , Jan 1996 1997 1998 NC3 NA NA NY9 NA NA , , Mar 1996 1997 1998 NC NA NA7 NY NA NA 13 On Thu, Dec 3, 2009 at 1:50 PM, Peng Cai pengcaimaill...@gmail.comwrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. Also, I may need to calculate mean value along with sum. Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
On Dec 3, 2009, at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. ?tapply as in sum.tbl - with(dftbl, tapply(Value, list(State, Month), sum) ) Also, I may need to calculate mean value along with sum. Use the mean function in the above formulation to get means, length to get counts, or perhaps summary or one of the several packages that offer a describe function. So many functions, so little time. -- David Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
Thanks David for your suggestions. On Thu, Dec 3, 2009 at 2:03 PM, David Winsemius dwinsem...@comcast.netwrote: On Dec 3, 2009, at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. ?tapply as in sum.tbl - with(dftbl, tapply(Value, list(State, Month), sum) ) Also, I may need to calculate mean value along with sum. Use the mean function in the above formulation to get means, length to get counts, or perhaps summary or one of the several packages that offer a describe function. So many functions, so little time. -- David Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
Also, can I control for number of decimal places printed. Like when I use mean function. By default it shows upto 7 dec. Thanks! On Thu, Dec 3, 2009 at 2:08 PM, Peng Cai pengcaimaill...@gmail.com wrote: Thanks David for your suggestions. On Thu, Dec 3, 2009 at 2:03 PM, David Winsemius dwinsem...@comcast.netwrote: On Dec 3, 2009, at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. ?tapply as in sum.tbl - with(dftbl, tapply(Value, list(State, Month), sum) ) Also, I may need to calculate mean value along with sum. Use the mean function in the above formulation to get means, length to get counts, or perhaps summary or one of the several packages that offer a describe function. So many functions, so little time. -- David Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] how to use different ylim scales on a lattice bwplot?
A colleague is interested in modifying the ylim definition for individual panels of a common bwplot plotting statement. Is there an approach to modifying the bwplot function to allow for a dynamic ylim range given different panel factors ? He is using R 2.6.2 on a Linux distribution running from a CD. Thanks for the assistance. Steve Steve Friedman Ph. D. Spatial Statistical Analyst Everglades and Dry Tortugas National Park 950 N Krome Ave (3rd Floor) Homestead, Florida 33034 steve_fried...@nps.gov Office (305) 224 - 4282 Fax (305) 224 - 4147 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
On Dec 3, 2009, at 2:14 PM, Peng Cai wrote: Also, can I control for number of decimal places printed. Like when I use mean function. By default it shows upto 7 dec. Thanks! print(4.567891234, digits=3) [1] 4.57 On Thu, Dec 3, 2009 at 2:08 PM, Peng Cai pengcaimaill...@gmail.com wrote: Thanks David for your suggestions. On Thu, Dec 3, 2009 at 2:03 PM, David Winsemius dwinsem...@comcast.net wrote: On Dec 3, 2009, at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. ?tapply as in sum.tbl - with(dftbl, tapply(Value, list(State, Month), sum) ) Also, I may need to calculate mean value along with sum. Use the mean function in the above formulation to get means, length to get counts, or perhaps summary or one of the several packages that offer a describe function. So many functions, so little time. -- David Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT David Winsemius, MD Heritage Laboratories West Hartford, CT [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Two-way/Three-way sum.
Thanks again! On Thu, Dec 3, 2009 at 2:19 PM, David Winsemius dwinsem...@comcast.netwrote: On Dec 3, 2009, at 2:14 PM, Peng Cai wrote: Also, can I control for number of decimal places printed. Like when I use mean function. By default it shows upto 7 dec. Thanks! print(4.567891234, digits=3) [1] 4.57 On Thu, Dec 3, 2009 at 2:08 PM, Peng Cai pengcaimaill...@gmail.comwrote: Thanks David for your suggestions. On Thu, Dec 3, 2009 at 2:03 PM, David Winsemius dwinsem...@comcast.netwrote: On Dec 3, 2009, at 1:50 PM, Peng Cai wrote: Hi R Users, I'm wondering how can I calculate two (or three) way sum of a variable. A sample data is: State Month Year Value NC Jan 1996 1 NC Jan 1996 2 NC Feb 1997 2 NC Feb 1997 3 NC Mar 1998 3 NC Mar 1998 4 NY Jan 1996 4 NY Jan 1996 5 NY Feb 1997 5 NY Feb 1997 6 NY Mar 1998 6 NY Mar 1998 7 I'm trying to sum up value column by State*Month and by State*Month*Year. ?tapply as in sum.tbl - with(dftbl, tapply(Value, list(State, Month), sum) ) Also, I may need to calculate mean value along with sum. Use the mean function in the above formulation to get means, length to get counts, or perhaps summary or one of the several packages that offer a describe function. So many functions, so little time. -- David Any help would be greatly appreciated, Thanks, Peng [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT David Winsemius, MD Heritage Laboratories West Hartford, CT [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] R and eclipse
I thought of your email when I ran across this link: http://romainfrancois.blog.free.fr/index.php?post/2009/09/02/R-capable-version-of-ant I think that you would have word your question more carefully for a longer response. Also, I use StatEt almost everyday. It works great with R. I have not used Eclipse for any other language. On Wed, Dec 2, 2009 at 12:20 PM, catuxa-2 catuxa...@gmail.com wrote: I found the eclipse plugin for R StatEt, hass anyone already worked with it? It's posible to put inside of java code a R script with it? Thank you -- View this message in context: http://n4.nabble.com/R-and-eclipse-tp934851p934851.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Dataframe help
Hi there I have two dataframes Dataframe_1 column_1colum_2 121 12345 145 1675 167 2765 Dataframe_2 column_1 column2 121abc 345lmn 167efg I want a resulting dataframe 121 12345abc 167 2765 efg how do i go abt it Ramya -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947934.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Dataframe help
On Dec 3, 2009, at 2:47 PM, Ramya wrote: Hi there I have two dataframes Dataframe_1 column_1colum_2 121 12345 145 1675 167 2765 Dataframe_2 column_1 column2 121abc 345lmn 167efg I want a resulting dataframe 121 12345abc 167 2765 efg how do i go abt it ?merge Ramya -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947934.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] matrix data appears corrupted.. appears to be pairs of decimal numbers glommed together
Hello, We are occasionally getting matrix results that appear to be corrupted... here are the last several rows of an example, copy-pasted out of the R command window. These are supposed to be floating point numbers. [25015,] 1.820848e-01-3.2090e-06i [25016,] 2.178046e-01-4.8140e-06i [25017,] 1.820848e-01-3.2090e-06i [25018,] 1.820848e-01-3.2090e-06i [25019,] 1.144594e-01-1.6657e-06i [25020,] 1.820848e-01-3.2090e-06i [25021,] -1.293271e-01+4.3889e-06i [25022,] 1.144594e-01-1.6657e-06i [25023,] 1.820848e-01-3.2090e-06i [25024,] 1.820848e-01-3.2090e-06i [25025,] 1.173487e-01-4.4415e-07i [25026,] 1.820848e-01-3.2090e-06i [25027,] 1.375304e-01-3.6167e-06i [25028,] 1.820848e-01-3.2090e-06i [25029,] -1.293271e-01+4.3889e-06i [25030,] 1.820848e-01-3.2090e-06i [25031,] 1.820848e-01-3.2090e-06i [25032,] 1.820848e-01-3.2090e-06i [25033,] 1.820848e-01-3.2090e-06i Any general idea what may be going on here? It is a sporadic problem... it occurs maybe 2% or 3% of the time when running this particular script on various data. I apologize for not including a pared-down example that reproduces the problem we are using an R script written elsewhere on large data sets. If someone wants more specifics please follow up. Steve Grubb __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Dataframe help
Try this: both - merge(left, right, by.x=column1, by.y=column1) left dataset column1column2 121 12345 145 1675 167 2765 right datset column1 column3 121abc 345lmn 167efg HTH, Peng On Thu, Dec 3, 2009 at 2:47 PM, Ramya ramya.vict...@gmail.com wrote: Hi there I have two dataframes Dataframe_1 column_1colum_2 121 12345 145 1675 167 2765 Dataframe_2 column_1 column2 121abc 345lmn 167efg I want a resulting dataframe 121 12345abc 167 2765 efg how do i go abt it Ramya -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947934.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.htmlhttp://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] matrix data appears corrupted.. appears to be pairs of decimal numbers glommed together
On Dec 3, 2009, at 3:02 PM, Stephen Grubb wrote: Hello, We are occasionally getting matrix results that appear to be corrupted... here are the last several rows of an example, copy- pasted out of the R command window. These are supposed to be floating point numbers. [25015,] 1.820848e-01-3.2090e-06i [25016,] 2.178046e-01-4.8140e-06i [25017,] 1.820848e-01-3.2090e-06i [25018,] 1.820848e-01-3.2090e-06i [25019,] 1.144594e-01-1.6657e-06i [25020,] 1.820848e-01-3.2090e-06i [25021,] -1.293271e-01+4.3889e-06i [25022,] 1.144594e-01-1.6657e-06i [25023,] 1.820848e-01-3.2090e-06i [25024,] 1.820848e-01-3.2090e-06i [25025,] 1.173487e-01-4.4415e-07i [25026,] 1.820848e-01-3.2090e-06i [25027,] 1.375304e-01-3.6167e-06i [25028,] 1.820848e-01-3.2090e-06i [25029,] -1.293271e-01+4.3889e-06i [25030,] 1.820848e-01-3.2090e-06i [25031,] 1.820848e-01-3.2090e-06i [25032,] 1.820848e-01-3.2090e-06i [25033,] 1.820848e-01-3.2090e-06i Any general idea what may be going on here? Those are all complex numbers. It is a sporadic problem... it occurs maybe 2% or 3% of the time when running this particular script on various data. You are most likely solving or inverting something that does not have all real roots or eigenvalues ... or something. I apologize for not including a pared-down example that reproduces the problem we are using an R script written elsewhere on large data sets. If someone wants more specifics please follow up. Steve Grubb David Winsemius, MD Heritage Laboratories West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Dataframe help
Thanks it worked!!! i was trying to use %in% and matching it. Ramya On Thu, Dec 3, 2009 at 2:06 PM, Peng Cai [via R] ml-node+947950-541874...@n4.nabble.comml-node%2b947950-541874...@n4.nabble.com wrote: Try this: both - merge(left, right, by.x=column1, by.y=column1) left dataset column1column2 121 12345 145 1675 167 2765 right datset column1 column3 121abc 345lmn 167efg HTH, Peng On Thu, Dec 3, 2009 at 2:47 PM, Ramya [hidden email]http://n4.nabble.com/user/SendEmail.jtp?type=nodenode=947950i=0 wrote: Hi there I have two dataframes Dataframe_1 column_1colum_2 121 12345 145 1675 167 2765 Dataframe_2 column_1 column2 121abc 345lmn 167efg I want a resulting dataframe 121 12345abc 167 2765 efg how do i go abt it Ramya -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947934.html Sent from the R help mailing list archive at Nabble.com. __ [hidden email]http://n4.nabble.com/user/SendEmail.jtp?type=nodenode=947950i=1mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html http://www.r-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ [hidden email]http://n4.nabble.com/user/SendEmail.jtp?type=nodenode=947950i=2mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- View message @ http://n4.nabble.com/Dataframe-help-tp947934p947950.html To unsubscribe from Dataframe help, click here (link removed) ==. -- View this message in context: http://n4.nabble.com/Dataframe-help-tp947934p947960.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] count number of empty cells in a table/matrix/data.frame
Thanks everyone who bothered to reply... I'm in the middle of a working binge and my brain is clearly fried if I wasn't able to figure that one out! Time to take a break... m. 2009/12/3 Greg Snow greg.s...@imail.org If you only want to count cells that are exactly 0.0 (not slightly different due to rounding errors) then try: sum( x==0 ) If you want a little wiggle room for rounding error, then you can try something like: sum( -0.001 x x 0.001 ) Adjusting the number of 0's as you see fit. Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of maiya Sent: Thursday, December 03, 2009 9:29 AM To: r-help@r-project.org Subject: [R] count number of empty cells in a table/matrix/data.frame Hi everyone! This is a ridiculously simple problem, I just can't seem to find the solution! All I need is something equivalent to sum(is.na(x)) but instead of counting missing values, to count empty cells (with a value of 0). A naive attempt with is.empty didn't work :) Thanks! Maja Oh, and if the proposed solution would be to make all the empty cells into missing cells, that is not an option! There are over 20,000,000 cells in my table, and I don't think my computer is in the mood to store two such objects! -- View this message in context: http://n4.nabble.com/count-number-of- empty-cells-in-a-table-matrix-data-frame-tp947740p947740.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting- guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] S4 Classes, nested objects and references
Joris Meys wrote: Hi all, I'm currently programming my first complete package in S4. (thanks to Christophe Genolini for the nice introduction he wrote). I have an object Data with a number of slots. One of those slots is meteo. Now Meteo is on itself a class with again a number of slots (like rainfall, temperature,..., you get the picture). I defined the slot meteo currently as a character slot, and the values refer to the names of the Meteo-objects related to that Data-object. The cleaner way would be to define the slot meteo as a slot of class Meteo, but I'm not sure how that works internally. Thing is, I have multiple Data objects that refer to the same Meteo object. I am a bit afraid that when I define the slot meteo as a slot of the corresponding class, each Data object will contain a complete copy of the Meteo object it relates to. This would mean that in the memory I will end up with multiple copies of exactly the same data. Although it is cleaner, it is definitely not more efficient. My question : Am I wrong in my assumption that I will have multiple copies in the memories? If yes, is it possible to use references in a more formal way than I do now? Or is there an obvious solution I am missing here? Hi Joris -- you're second-guessing R's memory management; it could be that the data are physically replicated, but that may not necessarily be so. The first thing to do is the obvious, define the slot to contain an object of class Mateo. If memory management really is an issue, then round two might define Mateo to contain a slot that is an environment, in which the big data is stored. setClass(Mateo, representation=representation(bigData=environment)) bigData = new.env(parent=emptyenv()) bigData[[myData]] = ... m = new(Mateo, bigData=bigData) This really changes the semantics of objects, so you'll want to protect your end users from unintended consequences, e.g., after n = m, changing m...@bigdata[[myData]] would also change n. You might use lockEnvironment in an initialize method to make sure that bigData is really read-only, or provide accessors that copy bigData when the user wants to make a change. It is also important to realize that setClass defines a prototype, the prototype contains an environment, and unless you take care then all instances derived from the prototype (e.g., calling new() without a bigData argument) will share the same environment. Probably not what you want. This extra work really reflects the change in semantics implied by references; it is only indirectly related to S4. Martin Thank you in advance Cheers Joris __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Martin Morgan Computational Biology / Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109 Location: Arnold Building M1 B861 Phone: (206) 667-2793 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] documentation of intersect() on string vector and num vector and on duplicated elements
Greg Snow wrote: -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- project.org] On Behalf Of David Winsemius Sent: Wednesday, December 02, 2009 3:25 PM To: Peng Yu Cc: r-h...@stat.math.ethz.ch Subject: Re: [R] documentation of intersect() on string vector and num vector and on duplicated elements I nominate the following as a fortune: If you are not going to read the help page, then please stop asking for corrections to it. I'll second that motion. -Peter Ehlers David Winsemius, MD Heritage Laboratories West Hartford, CT When is the version of the fortunes package on R-Forge going to make it to CRAN? Thanks, __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Data Manipulation Question
Can R support data manipulation programming that is available in the SAS datastep? Specifically, can R support the following: -         Read multiple dataset one record at a time and compare values from each; then base on if-then logic write to multiple output files -         Load a lookup table and then process a different file; based on if-then logic, access and lookup values in the table -         Support modular âgosubâprogramming -         Sort files -         Date math and conversions -         Would it be able to support the following type of logic: o  Start § Read Record from File 1 § Read Record from File 2 § Match ·        If Key 1 Key 2 and Key 1 Key 2, Write to output file A ·        If Key 1 = Key 2, Write to output file B ·        If Key 1 Key 2 and Key 1 Key 2, Write to output file C§ Goto Start until File 1 Done  John Filben Cell Phone - 773.401.2822 Email - johnfil...@yahoo.com [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Data Manipulation Question
On Thu, Dec 3, 2009 at 3:52 PM, John Filben johnfil...@yahoo.com wrote: Can R support data manipulation programming that is available in the SAS datastep? Specifically, can R support the following: - Read multiple dataset one record at a time and compare values from each; then base on if-then logic write to multiple output files - Load a lookup table and then process a different file; based on if-then logic, access and lookup values in the table - Support modular “gosub”programming - Sort files - Date math and conversions - Would it be able to support the following type of logic: o Start § Read Record from File 1 § Read Record from File 2 § Match · If Key 1 Key 2 and Key 1 Key 2, Write to output file A · If Key 1 = Key 2, Write to output file B · If Key 1 Key 2 and Key 1 Key 2, Write to output file C§ Goto Start until File 1 Done Yes. Hadley -- http://had.co.nz/ __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Data Manipulation Question
Please refrain from posting HTML. The results can be incomprehensible: On 2009.12.03 13:52:09, John Filben wrote: Can R support data manipulation programming that is available in the SAS datastep??? Specifically, can R support the following: -?? Read multiple dataset one record at a time and compare values from each; then base on if-then logic write to multiple output files -?? Load a lookup table and then process a different file; based on if-then logic, access and lookup values in the table -?? Support modular ???gosub???programming -?? Sort files -?? Date math and conversions -?? Would it be able to support the following type of logic: o Start Read Record from File 1 Read Record from File 2 Match ?? If Key 1 Key 2 and Key 1 Key 2, Write to output file A ?? If Key 1 = Key 2, Write to output file B ?? If Key 1 Key 2 and Key 1 Key 2, Write to output file C Goto Start until File 1 Done ??John Filben Cell Phone - 773.401.2822 Email - johnfil...@yahoo.com [[alternative HTML version deleted]] -- Jason W. Morgan Graduate Student Department of Political Science *The Ohio State University* 154 North Oval Mall Columbus, Ohio 43210 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] dataset index
Hello, All, I have a dataset that looks like this: x - matrix(c( 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1), ncol = 5, byrow = T, dimnames = list(1:10, c(gender, race, disease))) I want to write a function to produce several matrices including only “TRUE” and “FALSE” for the different levels of the variables (these matrices may be thought as index matrices), like m1 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE m2 FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE m3 FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE m4 FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE Can anyone please help how to get this done? Your help would be greatly appreciated. Lisa -- View this message in context: http://n4.nabble.com/dataset-index-tp948049p948049.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Question about R Functions
Is there a place to find the code for R functions like lsoda? Thanks __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] dataset index
Does this do what you want:
x - matrix(c(
+ 0, 0, 0,
+ 0, 0, 0,
+ 0, 1, 0,
+ 0, 1, 0,
+ 0, 1, 0,
+ 1, 2, 1,
+ 1, 2, 1,
+ 1, 3, 1,
+ 1, 3, 1,
+ 1, 3, 1),
+ ncol = 3, byrow = T,
+ dimnames = list(1:10, c(gender, race, disease)))
key - apply(x, 1, paste, collapse=:)
m.flags - lapply(unique(key), function(.indx){
+ key == .indx
+ })
# create the keys
do.call(rbind, m.flags)
1 2 3 4 5 6 7 8 910
[1,] TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
[2,] FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE
[3,] FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE
[4,] FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE
On Thu, Dec 3, 2009 at 5:07 PM, Lisa lisa...@gmail.com wrote:
Hello, All,
I have a dataset that looks like this:
x - matrix(c(
0, 0, 0,
0, 0, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
1, 2, 1,
1, 2, 1,
1, 3, 1,
1, 3, 1,
1, 3, 1),
ncol = 5, byrow = T,
dimnames = list(1:10, c(gender, race, disease)))
I want to write a function to produce several matrices including only “TRUE”
and “FALSE” for the different levels of the variables (these matrices may be
thought as index matrices), like
m1
TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
m2
FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE
m3
FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE
m4
FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE
Can anyone please help how to get this done? Your help would be greatly
appreciated.
Lisa
--
View this message in context:
http://n4.nabble.com/dataset-index-tp948049p948049.html
Sent from the R help mailing list archive at Nabble.com.
__
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
__
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[R] Revolutions blog: November roundup
I write about R every weekday at the Revolutions blog: http://blog.revolution-computing.com . In case you missed them, here are some articles from last month of particular interest to R users. http://bit.ly/un680 demonstrated reader Paul Bleicher's code for visualizing a time series as a heat-map calendar. http://bit.ly/5fgis0 and http://bit.ly/mepBH showed (with thanks to Drew Conway) how to use R to perform social network analysis on live data from Twitter. http://bit.ly/KKvSA challenged the R community to recreate an unemployment map created in Python in R. The results (http://bit.ly/11Qve9) were outstanding, and also inspired a similar look at unemployment in Germany (http://bit.ly/2Mywrq). http://bit.ly/4nKQ0w showcased a Brazilian open-government website created by Eduardo Leoni that relies heavily on R. Several media outlets this month looked at the impact of R and IBM's acquisition of SPSS on SAS: Information Management (http://bit.ly/5Qu5mp and http://bit.ly/8VT03b), the New York Times (http://bit.ly/5TRQBi), and Business Week (http://bit.ly/54OoNE). http://bit.ly/8hUr9u related how R graphics were used to illustrate an analysis of the US healthcare reform politics in the New York Times. http://bit.ly/3sM5kQ reviewed R's presence at a data-mining unconference in the Bay Area. http://bit.ly/3MZn0r showed how easy it is to install ESS on Ubuntu Linux, for a more productive environment for programming in R. http://bit.ly/6ajtBu looked at some of the unique features of R's function-call semantics. http://bit.ly/7UNSbl was a tongue-in-cheek comparison of Hadoop and R. http://bit.ly/1uxU3w announced REvolution Computing's R Productivity Environment, an IDE for R on Windows. http://bit.ly/1Qxp9P shares the slides from the Introduction to R talk I have to a Linux User Group in Davis (CA), and some links for R beginners. http://bit.ly/uZRtS linked to a simple analysis of scores from the game Canabalt. Other non-R-specific stories in the last month covered: floating-point errors (http://bit.ly/3UU4SJ), Stochasticity on the radio (http://bit.ly/4NpvRN), breast cancer screening (http://bit.ly/8Y01rs), the Mythbusters (http://bit.ly/8dd3Uz) and on the lighter side: the connection between Tufte and Lord of the Rings (http://bit.ly/5G6o31), a new way of looking at Choose Your Own Adventure books (http://bit.ly/1unnsO), and the Reimann Hypothesis (http://bit.ly/87ieTX). (I've provided short URLs above because many mailers break the long direct URLs.) The R Community Calendar has also been updated at: http://blog.revolution-computing.com/calendar.html You can find summaries of older postings here: http://blog.revolution-computing.com/roundups/ As always, thanks for the comments and please keep sending suggestions to me at da...@revolution-computing.com . Don't forget you can also follow the blog using an RSS reader like Google Reader, or by following me on Twitter (I'm @revodavid). Cheers to all, # David Smith -- David M Smith da...@revolution-computing.com VP of Marketing, REvolution Computing http://blog.revolution-computing.com Tel: +1 (206) 577-4778 x3203 (Palo Alto, CA, USA) Download REvolution R free: www.revolution-computing.com/downloads/revolution-r.php __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Scraping a web page
I would like to be able to submit a list of URLs of various webpages and extract the content i.e. not the mark-up of those pages. I can find plenty of examples in the XML library of extracting links from pages but I cannot seem to find a way to extract the text. Any help would be greatly appreciated - I will not know the structure of the URLs I would submit in advance. Any suggestions on where to look would be greatly appreciated. Mike W. Michael Conklin Chief Methodologist MarketTools, Inc. | www.markettools.comhttp://www.markettools.com 6465 Wayzata Blvd | Suite 170 | St. Louis Park, MN 55426. PHONE: 952.417.4719 | CELL: 612.201.8978 This email and attachment(s) may contain confidential and/or proprietary information and is intended only for the intended addressee(s) or its authorized agent(s). Any disclosure, printing, copying or use of such information is strictly prohibited. If this email and/or attachment(s) were received in error, please immediately notify the sender and delete all copies [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Question about R Functions
Yep! just do RSiteSeqarch(lsoda) -Ista On Thu, Dec 3, 2009 at 5:26 PM, Stephanie Cooke cooke.stepha...@gmail.com wrote: Is there a place to find the code for R functions like lsoda? Thanks __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Question about R Functions
http://search.r-project.org/cgi-bin/namazu.cgi?query=lsodamax=100result=normalsort=scoreidxname=functionsidxname=Rhelp08idxname=views On Dec 3, 2009, at 5:26 PM, Stephanie Cooke wrote: Is there a place to find the code for R functions like lsoda? Thanks __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD Heritage Laboratories West Hartford, CT __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] how to use different ylim scales on a lattice bwplot?
You can define a custom prepanel function: see the entry for 'prepanel' in ?xyplot If you just want to set specified ylims in each panel, you can do that by passing a list to 'ylim'. 2009/12/4 steve_fried...@nps.gov: A colleague is interested in modifying the ylim definition for individual panels of a common bwplot plotting statement. Is there an approach to modifying the bwplot function to allow for a dynamic ylim range given different panel factors ? He is using R 2.6.2 on a Linux distribution running from a CD. Thanks for the assistance. Steve Steve Friedman Ph. D. Spatial Statistical Analyst Everglades and Dry Tortugas National Park 950 N Krome Ave (3rd Floor) Homestead, Florida 33034 steve_fried...@nps.gov Office (305) 224 - 4282 Fax (305) 224 - 4147 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Felix Andrews / 安福立 Postdoctoral Fellow Integrated Catchment Assessment and Management (iCAM) Centre Fenner School of Environment and Society [Bldg 48a] The Australian National University Canberra ACT 0200 Australia M: +61 410 400 963 T: + 61 2 6125 4670 E: felix.andr...@anu.edu.au CRICOS Provider No. 00120C -- http://www.neurofractal.org/felix/ __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] dataset index
On Thu, 3 Dec 2009, Lisa wrote: Hello, All, I have a dataset that looks like this: x - matrix(c( 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1), ncol = 5, byrow = T, dimnames = list(1:10, c(gender, race, disease))) I want to write a function to produce several matrices including only “TRUE” and “FALSE” for the different levels of the variables (these matrices may be thought as index matrices), like m1 TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE m2 FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE m3 FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE m4 FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE Can anyone please help how to get this done? Your help would be greatly appreciated. Perhaps apply(x , 2, function(x) model.matrix(~0+factor(x))==1) ?? Chuck p.s. ncol = 3, I would think. Lisa -- View this message in context: http://n4.nabble.com/dataset-index-tp948049p948049.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Charles C. Berry(858) 534-2098 Dept of Family/Preventive Medicine E mailto:cbe...@tajo.ucsd.edu UC San Diego http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Please help with AR(2)
I need help in interpreting AR(2) model which is of a form y=phi2(t-2)+e... I can't get past the fact that phi1 is missing -does it mean that phi1 = 0? why would that be a case? Thank you all in advance! -- View this message in context: http://n4.nabble.com/Please-help-with-AR-2-tp947912p947912.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Arules - Association Rules
Hi I'm a windows XP user. My notebook have 1gb ram, 160gb hd, processor amd turion64 1,6gh. For processing, it takes about 40 minutes. This is the code i used: dados=read.csv(C:/Documents and Settings/Administrador/Meus documentos/My Dropbox/Estatística/Association Rules/Top2009 alterado.csv, header=T, rep=;) library(arules) bin=as(dados, transactions) rules - apriori(bin, parameter = list(support = 0.01, confidence = 0.6)) Above is a sample os fthe file. I export data as CSV from excel. I have 71 columns (variabels) an 1001 lines (responses) 1. Churrascaria 2. Supermercado 3. Restaurante Self Service 4. Restaurante Chinês 5. Buffet 6. Sorvete 7. Frango Galpão Nelore Super Muffato Não Sabe Jin Jin Planalto Sávio Big Frango Vento Sul Super Muffato Não Sabe Não Sabe Não Sabe Doce Verão Frangão Gaúcha Super Muffato Não Sabe Não Sabe Não Sabe Kibon Sadia Tradição Gaúcha Super Muffato Não Sabe Não Sabe Não Sabe Nestlé Big Frango Não Sabe Super Muffato Não Sabe Não Sabe Estilo Sávio Big Frango Rancho Grill Viscardi Akira Akira Não Sabe Não Sabe Não Sabe Thank you very for your helping!!! 2009/12/3 Steve Lianoglou mailinglist.honey...@gmail.com Hi, On Wed, Dec 2, 2009 at 6:57 PM, Alexandre - UEL shima...@gmail.com wrote: Hello everybody! I'm trying some datamining, but i'm having some problems with arule package, in the end of processing R had to be closed. I already tryied to reinstall the 2.10 version, change the computer and realocated more virtual memory. Does anyone had this problem to? I had a hiphoteses that i have to prepare the data, somehow i don't know. Thanks for helping!!! Can you provide more info here? 1. I'm assuming since you're talking about reallocating virtual memory, or whatever, you're on windows? 2. What's the exact error you're getting (what's it saying before R 'had to be closed'? 3. What's the size of your data? What type of data is it? 4. How much RAM do you have? 5. Are you on a 32 or 64 bit system? 6 What happens if you cut your data in half? 6. Can you provide a (very small) reproducible example of your data + code? ... -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contacthttp://cbio.mskcc.org/%7Elianos/contact -- É inútil e estúpido lastimar o mundo. Sofrimento e prazer são frutos do que faz Nissen Shounin [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Arules - Association Rules
Hi I'm a windows XP user. My notebook have 1gb ram, 160gb hd, processor amd turion64 1,6gh. For processing, it takes about 40 minutes. This is the code i used: dados=read.csv(C:/Documents and Settings/Administrador/Meus documentos/My Dropbox/Estatística/Association Rules/Top2009 alterado.csv, header=T, sep=;) library(arules) bin=as(dados, transactions) rules - apriori(bin, parameter = list(support = 0.01, confidence = 0.6)) Below is a sample of the file. I export data as CSV from excel. I have 71 columns (variabels) an 1001 lines (responses) 1. Churrascaria 2. Supermercado 3. Restaurante Self Service 4. Restaurante Chinês 5. Buffet 6. Sorvete Galpão Nelore Super MuffatoNão Sabe Jin JinPlanaltoSávio Vento Sul Super MuffatoNão Sabe Não SabeNão SabeDoce Verão Gaúcha Super MuffatoNão Sabe Não Sabe Não SabeKibon Tradição Gaúcha Super MuffatoNão Sabe Não Sabe Não SabeNestlé Não SabeSuper MuffatoNão Sabe Não SabeEstilo Sávio Rancho GrillViscardi Akira Akira Não Sabe Não Sabe Thank you very for your helping!!! On 3 dez, 01:46, Steve Lianoglou mailinglist.honey...@gmail.com wrote: Hi, On Wed, Dec 2, 2009 at 6:57 PM, Alexandre - UEL shima...@gmail.com wrote: Hello everybody! I'm trying some datamining, but i'm having some problems with arule package, in the end of processing R had to be closed. I already tryied to reinstall the 2.10 version, change the computer and realocated more virtual memory. Does anyone had this problem to? I had a hiphoteses that i have to prepare the data, somehow i don't know. Thanks for helping!!! Can you provide more info here? 1. I'm assuming since you're talking about reallocating virtual memory, or whatever, you're on windows? 2. What's the exact error you're getting (what's it saying before R 'had to be closed'? 3. What's the size of your data? What type of data is it? 4. How much RAM do you have? 5. Are you on a 32 or 64 bit system? 6 What happens if you cut your data in half? 6. Can you provide a (very small) reproducible example of your data + code? ... -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info:http://cbio.mskcc.org/~lianos/contact __ r-h...@r-project.org mailing listhttps://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Tobit model fluid milk consumption
Hi all, I'm from Brazil. I fit a Tobit model to FLUID MILK CONSUMPTION (DEPENDENT VARIABLE) data using survreg (attached). I am confused about the output interpretation and I would like yours explanations. Thanks, Marcio Roberto Silva Tobit model.pdf Description: Adobe PDF document __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] corrupted matrix data.. sporadic result appears to be pairs of decimal numbers glommed together
Hello, We are occasionally getting matrix results that appear to be corrupted... here are the last several rows of an example. These are supposed to be floating point numbers. [25015,] 1.820848e-01-3.2090e-06i [25016,] 2.178046e-01-4.8140e-06i [25017,] 1.820848e-01-3.2090e-06i [25018,] 1.820848e-01-3.2090e-06i [25019,] 1.144594e-01-1.6657e-06i [25020,] 1.820848e-01-3.2090e-06i [25021,] -1.293271e-01+4.3889e-06i [25022,] 1.144594e-01-1.6657e-06i [25023,] 1.820848e-01-3.2090e-06i [25024,] 1.820848e-01-3.2090e-06i [25025,] 1.173487e-01-4.4415e-07i [25026,] 1.820848e-01-3.2090e-06i [25027,] 1.375304e-01-3.6167e-06i [25028,] 1.820848e-01-3.2090e-06i [25029,] -1.293271e-01+4.3889e-06i [25030,] 1.820848e-01-3.2090e-06i [25031,] 1.820848e-01-3.2090e-06i [25032,] 1.820848e-01-3.2090e-06i [25033,] 1.820848e-01-3.2090e-06i Any general idea what may be going on here? It is a sporadic problem... it occurs maybe 2% or 3% of the time when running this particular script on various data. I apologize for not including a pared-down example that reproduces the problem we are using an R script written elsewhere on large data sets. If someone wants more specifics please follow up. Steve Grubb __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Multiple grouping on the X axis.
This looks like exactly what I was looking for, except I forgot to mention that they are looking for box-plots. Any ideas on a package that can do the same kind of organization but with box-plots? Jim Lemon wrote: Hi Munin, Look at hierobarp in the plotrix package. The current version doesn't have the recently programmed option to pass a list of arrays with the values, so if you want this capability, I will email the new code. Jim __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- View this message in context: http://n4.nabble.com/Multiple-grouping-on-the-X-axis-tp932397p948056.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Question about R Functions
Is there a place to find the code for R functions like lsoda? Thanks __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] dataset index
Thank you for your help. Your script works very well.
Lisa
jholtman wrote:
Does this do what you want:
x - matrix(c(
+ 0, 0, 0,
+ 0, 0, 0,
+ 0, 1, 0,
+ 0, 1, 0,
+ 0, 1, 0,
+ 1, 2, 1,
+ 1, 2, 1,
+ 1, 3, 1,
+ 1, 3, 1,
+ 1, 3, 1),
+ ncol = 3, byrow = T,
+ dimnames = list(1:10, c(gender, race, disease)))
key - apply(x, 1, paste, collapse=:)
m.flags - lapply(unique(key), function(.indx){
+ key == .indx
+ })
# create the keys
do.call(rbind, m.flags)
1 2 3 4 5 6 7 8 910
[1,] TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
[2,] FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE
[3,] FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE
[4,] FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE
On Thu, Dec 3, 2009 at 5:07 PM, Lisa lisa...@gmail.com wrote:
Hello, All,
I have a dataset that looks like this:
x - matrix(c(
0, 0, 0,
0, 0, 0,
0, 1, 0,
0, 1, 0,
0, 1, 0,
1, 2, 1,
1, 2, 1,
1, 3, 1,
1, 3, 1,
1, 3, 1),
ncol = 5, byrow = T,
dimnames = list(1:10, c(gender, race, disease)))
I want to write a function to produce several matrices including only
“TRUE”
and “FALSE” for the different levels of the variables (these matrices may
be
thought as index matrices), like
m1
TRUE TRUE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
m2
FALSE FALSE TRUE TRUE TRUE FALSE FALSE FALSE FALSE FALSE
m3
FALSE FALSE FALSE FALSE FALSE TRUE TRUE FALSE FALSE FALSE
m4
FALSE FALSE FALSE FALSE FALSE FALSE FALSE TRUE TRUE TRUE
Can anyone please help how to get this done? Your help would be greatly
appreciated.
Lisa
--
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__
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PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
__
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PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
View this message in context:
http://n4.nabble.com/dataset-index-tp948049p948080.html
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] corrupted matrix data.. sporadic result appears to be pairs of decimal numbers glommed together
Those appear to be complex numbers; some place in your script you must be computing something that return a complex number. Do an str on the matrix to see what it says; see if it says this: x.1 [,1] [,2] [1,] 0.1820848-0.032i 0.1820848-0.032i [2,] 0.1820848-0.032i 0.1820848-0.032i str(x.1) cplx [1:2, 1:2] 0.182-0i 0.182-0i 0.182-0i ... If it does, look closely at your script. On Thu, Dec 3, 2009 at 2:54 PM, Stephen Grubb stephen.gr...@jax.org wrote: Hello, We are occasionally getting matrix results that appear to be corrupted... here are the last several rows of an example. These are supposed to be floating point numbers. [25015,] 1.820848e-01-3.2090e-06i [25016,] 2.178046e-01-4.8140e-06i [25017,] 1.820848e-01-3.2090e-06i [25018,] 1.820848e-01-3.2090e-06i [25019,] 1.144594e-01-1.6657e-06i [25020,] 1.820848e-01-3.2090e-06i [25021,] -1.293271e-01+4.3889e-06i [25022,] 1.144594e-01-1.6657e-06i [25023,] 1.820848e-01-3.2090e-06i [25024,] 1.820848e-01-3.2090e-06i [25025,] 1.173487e-01-4.4415e-07i [25026,] 1.820848e-01-3.2090e-06i [25027,] 1.375304e-01-3.6167e-06i [25028,] 1.820848e-01-3.2090e-06i [25029,] -1.293271e-01+4.3889e-06i [25030,] 1.820848e-01-3.2090e-06i [25031,] 1.820848e-01-3.2090e-06i [25032,] 1.820848e-01-3.2090e-06i [25033,] 1.820848e-01-3.2090e-06i Any general idea what may be going on here? It is a sporadic problem... it occurs maybe 2% or 3% of the time when running this particular script on various data. I apologize for not including a pared-down example that reproduces the problem we are using an R script written elsewhere on large data sets. If someone wants more specifics please follow up. Steve Grubb __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Scraping a web page
If you only need to grab text it can be conveniently done with lynx. This example is for Windows but its nearly the same on other platforms: out - shell(lynx.bat --dump --nolist http://www.google.com;, intern = TRUE) head(out) [1] [2]Web Images Videos Maps News Books Gmail more » [3]iGoogle | Search settings | Sign in [4] [5]Google [6] On Thu, Dec 3, 2009 at 5:29 PM, Michael Conklin michael.conk...@markettools.com wrote: I would like to be able to submit a list of URLs of various webpages and extract the content i.e. not the mark-up of those pages. I can find plenty of examples in the XML library of extracting links from pages but I cannot seem to find a way to extract the text. Any help would be greatly appreciated - I will not know the structure of the URLs I would submit in advance. Any suggestions on where to look would be greatly appreciated. Mike W. Michael Conklin Chief Methodologist MarketTools, Inc. | www.markettools.comhttp://www.markettools.com 6465 Wayzata Blvd | Suite 170 | St. Louis Park, MN 55426. PHONE: 952.417.4719 | CELL: 612.201.8978 This email and attachment(s) may contain confidential and/or proprietary information and is intended only for the intended addressee(s) or its authorized agent(s). Any disclosure, printing, copying or use of such information is strictly prohibited. If this email and/or attachment(s) were received in error, please immediately notify the sender and delete all copies [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Off topic - Compendium of distributions
This is not an R related posting but I thought it would be interesting for readers of this list. Apologies for any cross-posting Dear all Our company Vose Software has just made a very comprehensive “Compendium of Distributions” available for free online at www.vosesoftware.com/content/ebook.pdf. The document explains the thinking behind and the uses of 76 distributions and gives plots of the distributions with different parameter values. It also has a section to give you a more intuitive understanding of formulas for things like density, moments, etc. and gives lists of possible candidate distributions for different types of problems like waiting time, stock price movements, expert estimates, etc. We hope you will find it useful! Regards, Francisco Francisco J. Zagmutt Senior Risk Analysis Consultant Vose Consulting 1643 Spruce St., Boulder Boulder, CO, 80302 USA francisco(at)voseconsulting(com) www.voseconsulting.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] Scraping a web page
Michael Conklin wrote: I would like to be able to submit a list of URLs of various webpages and extract the content i.e. not the mark-up of those pages. I can find plenty of examples in the XML library of extracting links from pages but I cannot seem to find a way to extract the text. Any help would be greatly appreciated - I will not know the structure of the URLs I would submit in advance. Any suggestions on where to look would be greatly appreciated. Mike W. Michael Conklin Chief Methodologist What kind of content are you after? Tables? Chunks of Text? For tables you can use the readHTMLTable() function in the XML package. There was also some discussion of alternate ways to extract data from tables in this thread: http://n4.nabble.com/Downloading-data-from-from-internet-td889838.html#a889845 If you're after text, then it's probably a matter of locating the element that encloses the data you want-- perhaps by using getNodeSet along with an XPath[1] that specifies the element you are interest with. The text can then be recovered using the xmlValue() function. Hope this helps! -Charlie [1]: http://www.w3schools.com/XPath/xpath_syntax.asp -- View this message in context: http://n4.nabble.com/Scraping-a-web-page-tp948069p948103.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Passing arguments to gpar
Dear R-users, I would like to know how to pass arguments to gpar() without hard-coding them. I tried to store my arguments in a list and passed this list to gpar(), but it did find the way to do it properly. Any help would be appreciated. a- list(fontisze=8,col=3) gpar(fontsize=8,col=3) gpar(a) gpar(unlist(a)) __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
