Re: [R] how to use plot.lda included in MASS package?

2005-06-16 Thread Prof Brian Ripley
The main answer is to follow the examples in the book for which this is support software. (That answer is in the R posting guide, too.) plot.lda is in the MASS namespace, and can be seen via getAnywhere() (so you can find them `anywhere'). panel.lda is defined in plot.lda. You should almost

Re: [R] how to plot density distribution with a arrow pointer?

2005-06-16 Thread Adaikalavan Ramasamy
I am assuming that you want to do this empirically : x0 - 0.899 x - c( rnorm(6000), rnorm(4000, mean=3) ) plot( d - density(x) ) y0 - approx( d$x, d$y, xout=x0 )$y # height at x0 segments( x0, 0, x0, y0, col=2 ) If you want a shaded effect, you can try the following : xx - seq( x0,

[R] mu^2(1-mu)^2 variance function for GLM

2005-06-16 Thread Henric Nilsson
Dear list, I'm trying to mimic the analysis of Wedderburn (1974) as cited by McCullagh and Nelder (1989) on p.328-332. This is the leaf-blotch on barley example, and the data is available in the `faraway' package. Wedderburn suggested using the variance function mu^2(1-mu)^2. This variance

[R] identical results with PQL and Laplace options in lmer function (package lme4)

2005-06-16 Thread Emmanuel Tillard
Dear R users I encounter a problem when i perform a generalized linear mixed model (binary data) with the lmer function (package lme4) with R 2.1.0 on windows XP and the latest version of package lme4 (0.96-1) and matrix (0.96-2) both options PQL and Laplace for the method argument in lmer

[R] Sweave and sideways

2005-06-16 Thread John Considine
Hi there, I'm rying to 'turn' an Schunk in an .Rnw file(Xemacs-21.4.13, ESS-5.2.8, R-2.1, miktex-2.4.1705). Has anyone got the isorot package to work with Sweave? JC example test.Rnw: \documentclass[a4paper]{article} \usepackage{Sweave} \usepackage{isorot} \rotdriver{dvips} \clockwise

[R] Excel files first row not being read

2005-06-16 Thread Vivek Subramanian
hi, i am using the RODBC package to read excel files using odbcConnectExcel and susequently sqlFetch to read the contents of the file. the file that i use is just a matrix of numbers thats all. no headers and column names. what happens is that the sqlFetch is not reading my first row of numbers.

Re: [R] identical results with PQL and Laplace options in lmer function (package lme4)

2005-06-16 Thread ronggui
i am aware of this but i don't know why. On Thu, 16 Jun 2005 10:31:25 +0200 Emmanuel Tillard [EMAIL PROTECTED] wrote: Dear R users I encounter a problem when i perform a generalized linear mixed model (binary data) with the lmer function (package lme4) with R 2.1.0 on windows XP and the

Re: [R] Excel files first row not being read

2005-06-16 Thread Vivek Subramanian
hi, the specifications for my application call that the input file be in excel only in the format i previously mentioned. now if the approach you mention has to be used then the part of converting has to be done automatically. this i found to be too complex. an alternative to that was to use MS

Re: [R] Excel files first row not being read

2005-06-16 Thread John Considine
Hi Vivek, I'm sure there must be an elegant way to interface R w ODBC connections, but I find it simplest to create a macro in Access that exports the data (based on a query or table) to a csv file, then use the R function read.csv() in which you can specify header=FALSE if you wish. I've used

[R] Moving average

2005-06-16 Thread Bernard L. Dillard
Good morning all! I am attempting to superimpose a moving-average smoother onto a graph of daily plots. These plots (in table[,2] below) span about 350 days and looks very noisy. I'd like for this smoother to plot the average of each group of 7 consecutive days (weekly) and show a line which

Re: [R] Moving average

2005-06-16 Thread Sean Davis
On Jun 16, 2005, at 8:04 AM, Bernard L. Dillard wrote: Good morning all! I am attempting to superimpose a moving-average smoother onto a graph of daily plots. These plots (in table[,2] below) span about 350 days and looks very noisy. I'd like for this smoother to plot the average of

Re: [R] need help on computing double summation

2005-06-16 Thread Liaw, Andy
If I understood correctly, the following might be simpler (dat is the data frame holding the data): sum(ave(dat$x, dat$id, FUN=scale, scale=FALSE) * + ave(dat$y, dat$id, FUN=scale, scale=FALSE)) [1] 6.229377 Andy From: Huntsinger, Reid You could do something like ids -

Re: [R] Error using newdata argument in survfit

2005-06-16 Thread Hanke, Alex
Hi Brian, The factor Prior.f has 5 levels (1,2,3,4,5) which coxph deals with by creating 4 dummy variables coded with 1 or zero. That's what I see when I look at fit$x. fit$x[1:5,] Week LagAOO factor(Prior.f)2 factor(Prior.f)3 factor(Prior.f)4 31 22 000

Re: [R] Moving average

2005-06-16 Thread ronggui
are you looking the function decompose? see ?decompose On Thu, 16 Jun 2005 08:04:18 -0400 (EDT) Bernard L. Dillard [EMAIL PROTECTED] wrote: Good morning all! I am attempting to superimpose a moving-average smoother onto a graph of daily plots. These plots (in table[,2] below) span about

[R] Survey - Cluster Sampling

2005-06-16 Thread Mark Hempelmann
Dear WizaRds, I am struggling to compute correctly a cluster sampling design. I want to do one stage clustering with different parametric changes: Let M be the total number of clusters in the population, and m the number sampled. Let N be the total of elements in the population and n

Re: [R] Reducing the FPR (false positive rate)

2005-06-16 Thread Liaw, Andy
From: Anderson de Rezende Rocha Hello R-USERS, I think some people didn't understand my question. What I want is to use the training set to minimize the FALSE POSITIVE RATE. I think it is possible. I sacrifice ACCURACY to have less FALSE POSITIVES. I don't want a classifier result

Re: [R] Excel files first row not being read

2005-06-16 Thread bogdan romocea
You could use a VB macro in Excel to automate the data export in CSV format, and it's not complex at all, for example: Private Sub CommandButton1_Click() Dim strB18 As String strB18 = Me.Cells(18, 2) 'MsgBox Export Folder = strB18 On Error GoTo ErrHandler Sheets(Inputs).SaveAs FileName:= _

Re: [R] Moving average

2005-06-16 Thread Achim Zeileis
On Thu, 16 Jun 2005 08:04:18 -0400 (EDT) Bernard L. Dillard wrote: Good morning all! I am attempting to superimpose a moving-average smoother onto a graph of daily plots. These plots (in table[,2] below) span about 350 days and looks very noisy. I'd like for this smoother to plot the

Re: [R] Sweave and sideways

2005-06-16 Thread John Considine
Thank you Dietrich. The minipage suggestion works a treat. Why does pdflatex and latex work differently though? If I latex the modified code, the 'sideways' part is still horizontal, yet when I use pdflatex it appears sideways? JC Considine -Original Message- From: Dietrich

[R] heatmap aspect ratio

2005-06-16 Thread Jacob Michaelson
Hi all, Does anyone know of a fairly easy way to stretch a heatmap vertically? I've got 42 arrays and would like to be able to see as many significant genes as possible (right now I can only get 50 genes with it still being readable). In some comparisons there are several hundred

Re: [R] abbreviate

2005-06-16 Thread Christoph Buser
Down to 17 if we carry on your idea using the matching property on the left hand side, too. :-) p$h=pmax(p$h,p$s) Gabor Grothendieck writes: Agree that this definitely should be pursued. :) In fact, we can shave off several keystrokes by - replacing p[[1]] with p[1] on the left hand

Re: [R] Error using newdata argument in survfit

2005-06-16 Thread Thomas Lumley
On Thu, 16 Jun 2005, Hanke, Alex wrote: Hi Brian, The factor Prior.f has 5 levels (1,2,3,4,5) which coxph deals with by creating 4 dummy variables coded with 1 or zero. That's what I see when I look at fit$x. fit$x[1:5,] Week LagAOO factor(Prior.f)2 factor(Prior.f)3 factor(Prior.f)4 31

Re: [R] identical results with PQL and Laplace options in lmer function (package lme4)

2005-06-16 Thread Douglas Bates
It's a dumb mistake in the code. I missed a factor of 2 when converting from deviance to log-likelihood in one place. I'll upload a new version of the Matrix package. (It happens that all of the code for lmer is in the Matrix package now so there is no need to update the lme4 package.) On

[R] Drawing information-rich, Tufte style scatterplots and axes

2005-06-16 Thread Steven J. Murdoch
I have been working on using R to draw information-rich graphs based on suggestions from The Visual Display of Quantitative Information by Edward Tufte. Thanks to the members of the list who have helped me with this. I have now produced the first version of this code, which I used to generate

Re: [R] heatmap aspect ratio

2005-06-16 Thread Sean Davis
On Jun 16, 2005, at 9:47 AM, Jacob Michaelson wrote: Hi all, Does anyone know of a fairly easy way to stretch a heatmap vertically? I've got 42 arrays and would like to be able to see as many significant genes as possible (right now I can only get 50 genes with it still being readable).

Re: [R] Survey - Cluster Sampling

2005-06-16 Thread Thomas Lumley
On Thu, 16 Jun 2005, Mark Hempelmann wrote: Dear WizaRds, I am struggling to compute correctly a cluster sampling design. I want to do one stage clustering with different parametric changes: Let M be the total number of clusters in the population, and m the number sampled. Let N be

[R] ccf

2005-06-16 Thread Laura De Vendictis
Hello group, For my research I should calculate the cross-correlation between two time series. I don't know if the function ccf can calculate this with series that have NA values. e.g. temperature: 15.5 NA 12.3 10.0 NA 14.2 15,3 Can you help me? Thank you very much! Laura

Re: [R] mu^2(1-mu)^2 variance function for GLM

2005-06-16 Thread David Firth
Dear Henric I do not have a ready stock of other examples, but I do have my own version of a family function for this, reproduced below. It differs from yours (apart from being a regular family function rather than using a modified quasi) in the definition of deviance residuals. These

Re: [R] ccf

2005-06-16 Thread Roger D. Peng
You might try passing 'na.contiguous' to the 'na.action' argument. -roger Laura De Vendictis wrote: Hello group, For my research I should calculate the cross-correlation between two time series. I don't know if the function ccf can calculate this with series that have NA values. e.g.

Re: [R] Error using newdata argument in survfit

2005-06-16 Thread Hanke, Alex
Thanks to Thomas, Brain and Ales, Whose advice led me to the solution. I actually had a second problem preventing Thomas' solution : survfit(fit,list(Week=c(15,15),LagAOO=c(0,0),Prior.f=factor(c(1,2),levels=1: 5))) from working. In the model statement I create a factor from Prior.f via

Re: [R] Drawing information-rich, Tufte style scatterplots and axes

2005-06-16 Thread David Forrest
On Thu, 16 Jun 2005, Steven J. Murdoch wrote: I have been working on using R to draw information-rich graphs based on suggestions from The Visual Display of Quantitative Information by Edward Tufte. Thanks to the members of the list who have helped me with this. I have now produced the

[R] Financial toolkit

2005-06-16 Thread Gaurav Gupta
Is there any financial toolkit available for use in R ?? I am looking at a variety of functions but don't want to recreate each one of them. Thanks Gaurav [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list

Re: [R] Financial toolkit

2005-06-16 Thread Achim Zeileis
On Thu, 16 Jun 2005 13:59:20 -0400 Gaurav Gupta wrote: Is there any financial toolkit available for use in R ?? I am looking at a variety of functions but don't want to recreate each one of them. Look at the Finance task view at http://CRAN.R-project.org/src/contrib/Views/ That should

[R] Excel files first row not being read

2005-06-16 Thread khobson
If you would post your R code and explain how a simple Excel matrix is set up, we might be able to help more. khobson at odot.org Kenneth Ray Hobson, P.E. Oklahoma DOT - QA IAS Manager 200 N.E. 21st Street Oklahoma City, OK 73105-3204 (405) 522-4985, (405) 522-0552 fax

[R] Computing generalized eigenvalues

2005-06-16 Thread Joshua Gilbert
I need to compute generalized eigenvalues. The eigen function in base doesn't do it and I can't find a package that does. As I understand it, Lapack __can__ computer them (http://www.netlib.org/lapack/lawn41/node111.html) and R can use Lapack. If there is no function already, can I access Lapack

[R] Tapes... DVDs... Now this...

2005-06-16 Thread Kerry P. Robin, II
Hey, Then I started 'teaching'. You know, I'm a good teacher. (Well, maybe just an average teacher, but you get the jist). I know what good teachers do. Or I thought I did. I sat with the children at the computer. When they pressed the IntelliKeys' keyboard or the Touch Window' and the

Re: [R] Financial toolkit

2005-06-16 Thread Wojtek Slusarski
Gaurav Gupta wrote: Is there any financial toolkit available for use in R ?? I am looking at a variety of functions but don't want to recreate each one of them. I am not sure what kind of financial functions you need, but there is a very good toolkit for financial time series analysis in

[R] Analysing ordinal/nominal data

2005-06-16 Thread Piotr Majdak
Hi! I'm looking for a solution to analyse data, which consists of dichotomous responses (yes/no) for 2 multinomial ordinal variables. I was trying glm() and got hierarhical models treating all variables as nominal, but I can't figure out how to tell glm() to use a model for ordinal data like

[R] Potential minor GUI bug

2005-06-16 Thread Francisco J. Zagmutt
Is this an interface bug? Using RGUI for windows I run into a Not Responding process (I smartly coded an infinite loop, yaiks!), I hit esc and the interpreter was stopped and I recovered the console functionality but the caption on the R icon in my windows taskbar (the individual icon shown

Re: [R] Computing generalized eigenvalues

2005-06-16 Thread Huntsinger, Reid
If you mean singular values, look at svd(). Otherwise you may need to explain; a generalized eigenvector does have an honest eigenvalue attached to it, so I'm guessing you mean something else. Reid Huntsinger -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf

[R] regressing each column of a matrix on all other columns

2005-06-16 Thread Stefan Mischke
DeaR list I would like to predict the values of each column of a matrix A by regressing it on all other columns of the same matrix A. I do this with a for loop: A - B - matrix(round(runif(10*3,1,10),0),10) A for (i in 1:length(A[1,]))B[,i] - as.matrix(predict(lm(

Re: [R] Potential minor GUI bug

2005-06-16 Thread Liaw, Andy
I don't think that's a bug. Almost every Windows application can do that: when it's busy with computation, you'll see the not responding message. Andy From: Francisco J. Zagmutt Is this an interface bug? Using RGUI for windows I run into a Not Responding process (I smartly coded an

[R] logistic regression - using polys and products of features

2005-06-16 Thread Stephen Choularton
Hi I can get all my features by doing this: logistic.model = glm(similarity ~ ., family=binomial, data = cData[3001:3800,]) I can get the product of all my features by this: logistic.model = glm(similarity ~ . ^ 2, family=binomial, data = cData[3001:3800,]) I don't seem to be able to

[R] data for becker and chambers?

2005-06-16 Thread r help
hi i am reading becker and chambers (1984 edition) and i was wondering if the datasets are available online somewhere (or already installed in R?) if so, please let me know where i can access them so i can do the examples in the book. thanks -gong __

[R] lm and time series: simple question

2005-06-16 Thread mwh
Hello: This question is partly about R and partly out of my ignorance about time series. I want to regress one time series on another, taking into account the autocorrelation (in an AR1 model) within each series. I am interested in how the standard error changes when the acf is taken into

[R] possible bug in merge with duplicate blank names in 'by' field.

2005-06-16 Thread Frank Gibbons
Run this: p - c('a', 'c', '', ''); a - c(10, 20, 30, 40); d1 - data.frame(Promoter=p, ip=a) # Note duplicate empty names in p. p - c('b', 'c', 'd', ''); a - c(15, 20, 30, 40); d2 - data.frame(Promoter=p, ip=a) all - merge(x=d1, y=d2, by=Promoter, all=T) all - merge(x=all, y=d2, by=Promoter,

Re: [R] Plotting second axes outside xyplot

2005-06-16 Thread Paul Murrell
Hi Andrew Robinson wrote: Hi all, I'm trying to find a way to get xyplot to produce a second set of axes outside the right hand side of the graph. This is my progress so far: EE - equal.count(ethanol$E, number=9, overlap=1/4) xyplot(NOx ~ C | EE, data = ethanol, prepanel =

Re: [R] how to plot density distribution with a arrow pointer?

2005-06-16 Thread Gabor Grothendieck
On 6/16/05, Adaikalavan Ramasamy [EMAIL PROTECTED] wrote: I am assuming that you want to do this empirically : x0 - 0.899 x - c( rnorm(6000), rnorm(4000, mean=3) ) plot( d - density(x) ) y0 - approx( d$x, d$y, xout=x0 )$y # height at x0 segments( x0, 0, x0, y0, col=2 ) The

Re: [R] Excel files first row not being read

2005-06-16 Thread Gabor Grothendieck
Antoher non-OBDC solution is to get the information from Excel using Microsoft COM objects. Look into 1. the RDCOM package on CRAN, or 2. the rcom package, rcom_1.0-1.zip, at: http://sunsite.univie.ac.at/rcom/download/ The rcom package has a mailing list at:

Re: [R] abbreviate

2005-06-16 Thread Gabor Grothendieck
The $ replacement function does not work with pattern matching -- only the $ operator on the right hand side does, e.g. irish - head(iris) irish$S - 1 irish$Species - 2 irish Sepal.Length Sepal.Width Petal.Length Petal.Width Species S 1 5.1 3.5 1.4 0.2

Re: [R] possible bug in merge with duplicate blank names in 'by' field.

2005-06-16 Thread Gabor Grothendieck
What version of R are you using? I don't get the same result on my system: R.version.string # Windows XP [1] R version 2.1.0, 2005-06-10 p - c('a', 'c', '', ''); a - c(10, 20, 30, 40); d1 - + data.frame(Promoter=p, ip=a) # Note duplicate empty names in p. p - c('b', 'c', 'd', ''); a - c(15,

Re: [R] how to plot density distribution with a arrow pointer?

2005-06-16 Thread Jim Brennan
I am trying to reproduce your example but we don't have object vf in vfont=vf. Do we need some package? Rtext(x0,y0, \\da,vfont=vf, pos=3, col=green) Error in text.default(x0, y0, \\da, vfont = vf, pos = 3, col = green) : Object vf not found Rversion _ platform

Re: [R] how to plot density distribution with a arrow pointer?

2005-06-16 Thread Gabor Grothendieck
Sorry, I copied the first part from the previous post and the second part from my editor session and must have not copied the entire script. Here it is again: # next 5 lines from previous post: x0 - 0.899 x - c( rnorm(6000), rnorm(4000, mean=3) ) plot( d - density(x) ) y0 - approx( d$x, d$y,