Re: [R] difference between script and a function....

2022-12-24 Thread akshay kulkarni
Dear Ivan, Thanks a lot.! Thanking you, Yours sincerely, AKSHAY M KULKARNI From: Ivan Krylov Sent: Saturday, December 24, 2022 9:27 PM To: akshay kulkarni Cc: R help Mailing list Subject: Re: [R] difference between script and a function

Re: [R] difference between script and a function....

2022-12-24 Thread Ivan Krylov
On Sat, 24 Dec 2022 15:47:14 + akshay kulkarni wrote: > How do you debug if there is an error, particularly if I run the > script from the BASH prompt? Post-mortem debugging for non-interactive R scripts can be enabled by setting options(error = quote(dump.frames("A_SUITABLE_FILE_NAME",

Re: [R] difference between script and a function....

2022-12-24 Thread akshay kulkarni
...but from the Linux prompt? Thanking you, Yours sincerely, AKSHAY M KULKARNI From: Ivan Krylov Sent: Saturday, December 24, 2022 8:52 PM To: akshay kulkarni Cc: R help Mailing list Subject: Re: [R] difference between script and a function On Sat, 24 Dec 2022 14:54

Re: [R] difference between script and a function....

2022-12-24 Thread Ivan Krylov
On Sat, 24 Dec 2022 14:54:52 + akshay kulkarni wrote: > If there is some error in the script, the error will be output to > the stdout? Or to the file that it creates for saving the output of > the script? When using Rscript: to stderr, to be precise. When using R CMD BATCH: to the Rout

Re: [R] difference between script and a function....

2022-12-24 Thread akshay kulkarni
From: Andrew Simmons Sent: Saturday, December 24, 2022 8:18 PM To: akshay kulkarni Cc: R help Mailing list Subject: Re: [R] difference between script and a function 1. The execution environment for a script is the global environment. Each R script run from a shell

Re: [R] difference between script and a function....

2022-12-24 Thread Andrew Simmons
1. The execution environment for a script is the global environment. Each R script run from a shell will be given its own global environment. Each R session has exactly one global environment, but you can have several active R sessions. 2. Using return in a script instead of a function will throw

[R] difference between script and a function....

2022-12-24 Thread akshay kulkarni
Dear members, I will be running scripts automatically in RHEL with crontab. I want to know the differences between running a script and a function. in particular: 1. An execution environment will be created for the function. what about a script? Is the

[R] Difference between cor_auto (qgraph package) and lavCor (lavaan package)

2019-04-19 Thread Enjalbert Line via R-help
Hello, I would like to know the diffrence between 2 commands : cor_auto (from qgraph package) and lavCor (from lavaan package) to compute a polychoric correlation matrix in order to do a network analysis. I have the responses to the SF-36 questionnaire (36 items with ordered responses) and I

Re: [R] difference between ifelse and if...else?

2017-12-13 Thread MacQueen, Don
Because ifelse is not intended to be an alternative to if ... else. They exist for different purposes. (besides the other replies, a careful reading of their help pages, and trying the examples, should explain the different purposes). -- Don MacQueen Lawrence Livermore National Laboratory 7000

Re: [R] difference between ifelse and if...else?

2017-12-13 Thread Duncan Murdoch
On 13/12/2017 10:31 AM, Jinsong Zhao wrote: Hi there, I don't know why the following codes are return different results. > ifelse(3 > 2, 1:3, length(1:3)) [1] 1 > if (3 > 2) 1:3 else length(1:3) [1] 1 2 3 Any hints? The documentation in the help page ?ifelse and ?"if" explains it pretty

Re: [R] difference between ifelse and if...else?

2017-12-13 Thread Eric Berger
ifelse returns the "shape" of the first argument In your ifelse the shape of "3 > 2" is a vector of length one, so it will return a vector length one. Avoid "ifelse" until you are very comfortable with it. It can often burn you. On Wed, Dec 13, 2017 at 5:33 PM, jeremiah rounds

Re: [R] difference between ifelse and if...else?

2017-12-13 Thread jeremiah rounds
ifelse is vectorized. On Wed, Dec 13, 2017 at 7:31 AM, Jinsong Zhao wrote: > Hi there, > > I don't know why the following codes are return different results. > > > ifelse(3 > 2, 1:3, length(1:3)) > [1] 1 > > if (3 > 2) 1:3 else length(1:3) > [1] 1 2 3 > > Any hints? > > Best, >

[R] difference between ifelse and if...else?

2017-12-13 Thread Jinsong Zhao
Hi there, I don't know why the following codes are return different results. > ifelse(3 > 2, 1:3, length(1:3)) [1] 1 > if (3 > 2) 1:3 else length(1:3) [1] 1 2 3 Any hints? Best, Jinsong __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and

Re: [R] Difference between console output of cat and print

2017-04-17 Thread Bert Gunter
Well,... cat() is as Jeff describes. However, print() is a generic function (see ?UseMethod) for which there are literally hundreds of different methods that may do far more/different than merely output character strings. For example, the print method for trellis objects, print.trellis, draws a

Re: [R] Difference between console output of cat and print

2017-04-17 Thread Jeff Newmiller
Please stop posting html email per the Posting Guide. You are only going to reduce the chance of successfully communicating your questions to experienced users on this list. Re cat vs print: the purpose of print is to show values much as they are entered in source code, so quotes and escaped

[R] Difference between console output of cat and print

2017-04-17 Thread Data MagicPro
Since both *cat * as well as * print * create a character vector for outputing on the screen. Still both give different results as apparant below. My query is why so ? > cat(10) 10 > print(10) [1] 10 Why is the [1] of index number missing in case of *cat *? Thanks Ramnik [[alternative

Re: [R] Difference between R for the Mac and for Windows

2017-04-01 Thread peter dalgaard
[This is drifting somewhat awy from the original intention of the topic, I think]. This looks like a build dependency. I get 3.3.2 (yeah, I know, should upgrade): > (1+2i)/0 [1] NaN+NaNi R-devel, march 24: > (1+2i)/0 [1] Inf+Infi on the *same* machine. The difference is that one is stock

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread Berend Hasselman
> On 31 Mar 2017, at 19:28, John McKown wrote: > > On Fri, Mar 31, 2017 at 12:15 PM, Berend Hasselman wrote: > > I have noted a difference between R on macOS en on Kubuntu Trusty (64bits) > with complex division. > I don't know what would happen

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread John McKown
On Fri, Mar 31, 2017 at 12:15 PM, Berend Hasselman wrote: > > I have noted a difference between R on macOS en on Kubuntu Trusty (64bits) > with complex division. > I don't know what would happen R on Windows. > > R.3.3.3: > > macOS (10.11.6) > - > > (1+2i)/0 > [1]

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread Uwe Ligges
On 31.03.2017 19:15, Berend Hasselman wrote: I have noted a difference between R on macOS en on Kubuntu Trusty (64bits) with complex division. I don't know what would happen R on Windows. R.3.3.3: macOS (10.11.6) - (1+2i)/0 [1] NaN+NaNi (-1+2i)/0 [1] NaN+NaNi 1i/0

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread Berend Hasselman
I have noted a difference between R on macOS en on Kubuntu Trusty (64bits) with complex division. I don't know what would happen R on Windows. R.3.3.3: macOS (10.11.6) - > (1+2i)/0 [1] NaN+NaNi > (-1+2i)/0 [1] NaN+NaNi > > 1i/0 [1] NaN+NaNi > 1i/(0+0i) [1] NaN+NaNi

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread Ista Zahn
The only place I've noticed differences is in encoding and string sorting, both of which are locale and library dependent. Best, Ista On Mar 31, 2017 8:14 AM, "Neil Salkind" wrote: > Can someone please direct me to an answer to the question as to how R > differs for

Re: [R] Difference between R for the Mac and for Windows

2017-03-31 Thread peter dalgaard
File encodings differ when you move outside of standard ASCII code. Not really R's problem, but it is a fly in the ointment when teaching classes with mixed laptop armoury and there are also differences between classroom and desktop computers. RStudio does have features to switch encodings, but

Re: [R] Difference between R for the Mac and for Windows

2017-03-30 Thread David Winsemius
> On Mar 30, 2017, at 8:40 PM, Boris Steipe wrote: > > I can't remember having seen my students write code that runs correctly on > one platform but not the other. Obviously under the hood there are > significant differences, but as far as code goes, R seems quite

Re: [R] Difference between R for the Mac and for Windows

2017-03-30 Thread Boris Steipe
I can't remember having seen my students write code that runs correctly on one platform but not the other. Obviously under the hood there are significant differences, but as far as code goes, R seems quite foolproof. There are GUI differences in base R - but AFAIK no such differences in the

[R] Difference between R for the Mac and for Windows

2017-03-30 Thread Neil Salkind
Can someone please direct me to an answer to the question as to how R differs for these two operating systems, if at all? Thanks - Neil __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help

Re: [R] difference between require and library

2016-04-27 Thread Thierry Onkelinx
Dear Jean, Have a look at http://stackoverflow.com/questions/5595512/what-is-the-difference-between-require-and-library Best regards, ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics &

[R] difference between require and library

2016-04-27 Thread MAURICE Jean - externe
Hi, Is there any other difference between 'require' and 'library' than the error or warning when the library is not found ? Jean in France Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis à l'intention exclusive des destinataires et les informations qui y

Re: [R] difference between successive values

2016-03-05 Thread Jim Lemon
Hi catalin, I think what you are trying to do is to retrieve the original observations from the cumulated values. In that case Olivier's suggestion will do what you want: c(x[1],diff(x)) Jim On Sat, Mar 5, 2016 at 1:59 AM, catalin roibu wrote: > I mean the first row

Re: [R] difference between successive values

2016-03-04 Thread catalin roibu
I mean the first row value În Vin, 4 mar. 2016, 16:15 Jeff Newmiller, a scris: > "Keep the first values" is imprecise, but mixing an absolute value with a > bunch of differences doesn't usually work out well. I frequently choose > among > > x <- sample( 10 ) > dxright

Re: [R] difference between successive values

2016-03-04 Thread Jeff Newmiller
"Keep the first values" is imprecise, but mixing an absolute value with a bunch of differences doesn't usually work out well. I frequently choose among x <- sample( 10 ) dxright <- c( 0, diff(x) ) dxleft <- c( diff(x), 0 ) for calculation purposes depending on my needs. -- Sent from my

Re: [R] difference between successive values

2016-03-04 Thread Olivier Crouzet
Hi, (1) You should provide a minimal working example; (2) But anyway, does... x = sample(10) c(x[1],diff(x)) ... do what you want? Olivier. On Fri, 4 Mar 2016 13:22:07 +0200 catalin roibu wrote: > Dear all! > > I want to calculate difference between successive

[R] difference between successive values

2016-03-04 Thread catalin roibu
Dear all! I want to calculate difference between successive values (cumulative values) with R. I used diff function, but I want to keep the first values. Please help me to solve this problem! Thank you! Best regards! CR -- - - Catalin-Constantin ROIBU ​ Lecturer PhD, Forestry engineer

Re: [R] difference between write.csv(...) and write.table(..., sep=, )

2015-08-16 Thread Berend Hasselman
On 16-08-2015, at 16:38, Jinsong Zhao jsz...@yeah.net wrote: Hi there, I notice that write.csv is a wrap of write.table. However, I can't get the same results using both functions. Here is a reproducible example: x - matrix(1:6, nrow =2) rownames(x) - letters[1:2] colnames(x) -

Re: [R] difference between write.csv(...) and write.table(..., sep=, )

2015-08-16 Thread Marc Schwartz
On Aug 16, 2015, at 9:38 AM, Jinsong Zhao jsz...@yeah.net wrote: Hi there, I notice that write.csv is a wrap of write.table. However, I can't get the same results using both functions. Here is a reproducible example: x - matrix(1:6, nrow =2) rownames(x) - letters[1:2] colnames(x)

Re: [R] difference between write.csv(...) and write.table(..., sep=, )

2015-08-16 Thread Michael Dewey
I think that if you do ?write.csv and then page down to the section entitled CSV files the mystery will be solved for you in the first few paragraphs. On 16/08/2015 15:38, Jinsong Zhao wrote: Hi there, I notice that write.csv is a wrap of write.table. However, I can't get the same results

[R] difference between write.csv(...) and write.table(..., sep=, )

2015-08-16 Thread Jinsong Zhao
Hi there, I notice that write.csv is a wrap of write.table. However, I can't get the same results using both functions. Here is a reproducible example: x - matrix(1:6, nrow =2) rownames(x) - letters[1:2] colnames(x) - LETTERS[1:3] write.csv(x, ) ,A,B,C a,1,3,5 b,2,4,6 write.table(x, ,

[R] Difference between drop1() vs. anova() for Gaussian glm models

2015-07-20 Thread Karl Ove Hufthammer
Dear list members, I’m having some problems understanding why drop1() and anova() gives different results for *Gaussian* glm models. Here’s a simple example: d = data.frame(x=1:6, group=factor(c(rep(A,2), rep(B, 4 l = glm(x~group, data=d) Running the following code

Re: [R] Difference between drop1() vs. anova() for Gaussian glm models

2015-07-20 Thread peter dalgaard
I am somewhat surprised that _anything_ sensible comes out of anova.glm(l, test=Chisq). I think it is mostly expected that you use F tests for that case. What does seem to come out is the same as for drop1(l, test=Rao), which gives the scaled score test, which would seem to be equivalent to

Re: [R] Difference between 32-bit and 64-bit version

2015-06-04 Thread Thierry Onkelinx
Dear Duncan, I had been thinking about FAQ 7.31. I tried to create a dummy dataset with the same structure to replicate the problem with the need of sending my dataset. However all of them gave identical() results between 32-bit and 64-bit. Note that coef()$fRow is a 1266 x 6 data.frame. Is it

Re: [R] Difference between 32-bit and 64-bit version

2015-06-04 Thread Thierry Onkelinx
low probability of occurring was just statisticians lingo for rare ;-) ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie Kwaliteitszorg / team Biometrics Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium To call in

Re: [R] Difference between 32-bit and 64-bit version

2015-06-04 Thread Duncan Murdoch
On 04/06/2015 3:59 AM, Thierry Onkelinx wrote: Dear Duncan, I had been thinking about FAQ 7.31. I tried to create a dummy dataset with the same structure to replicate the problem with the need of sending my dataset. However all of them gave identical() results between 32-bit and 64-bit.

Re: [R] Difference between 32-bit and 64-bit version

2015-06-03 Thread Duncan Murdoch
On 03/06/2015 11:56 AM, Thierry Onkelinx wrote: Dear all, I'm a bit puzzled by the difference in an object when created in R 32-bit and R 64-bit. Consider the code below. test.rda is available at https://drive.google.com/file/d/0BzBrlGSuB9n-NFBWeC1TR093Sms/view?usp=sharing # Run in R

[R] Difference between 32-bit and 64-bit version

2015-06-03 Thread Thierry Onkelinx
Dear all, I'm a bit puzzled by the difference in an object when created in R 32-bit and R 64-bit. Consider the code below. test.rda is available at https://drive.google.com/file/d/0BzBrlGSuB9n-NFBWeC1TR093Sms/view?usp=sharing # Run in R 3.2.0 Windows 32-bit, lme4 1.1-8 library(lme4)

Re: [R] difference between max in summary table and max function

2015-02-16 Thread Franckx Laurent
] Sent: zaterdag 14 februari 2015 8:16 To: 'Martyn Byng'; r-help@r-project.org Cc: Franckx Laurent Subject: RE: [R] difference between max in summary table and max function I thought I'd chime in ... submitting the following: ?summary Provides the following documentation for the default

[R] difference between max in summary table and max function

2015-02-13 Thread Franckx Laurent
Dear all I have found out that the max in the summary of an integer vector is not always equal to the actual maximum of that vector. For example: testrow - c(1:131509) summary(testrow) Min. 1st Qu. MedianMean 3rd Qu.Max. 1 32880 65760 65760 98630 131500

Re: [R] difference between max in summary table and max function

2015-02-13 Thread Martyn Byng
Its a formatting thing, try summary(testrow,digits=20) -Original Message- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Franckx Laurent Sent: 13 February 2015 11:00 To: r-help@r-project.org Subject: [R] difference between max in summary table and max function Dear all

Re: [R] difference between max in summary table and max function

2015-02-13 Thread Allen Bingham
Byng Sent: Friday, February 13, 2015 3:15 AM To: Franckx Laurent; r-help@r-project.org Subject: Re: [R] difference between max in summary table and max function Its a formatting thing, try summary(testrow,digits=20) -Original Message- From: R-help [mailto:r-help-boun...@r-project.org

[R] Difference between eigs() and eigen()

2014-12-29 Thread Pierrick Bruneau
Dear R users and contributors, I recently observed a difference between the outputs of the classic eigen() function, and the Arnoldi variant eigs() that extracts only the few first eigenpairs. Here is some sample code illustrating the problem: library(rARPACK) library(speccalt) set.seed(1) #

Re: [R] Difference between eigs() and eigen()

2014-12-29 Thread Uwe Ligges
eigs() is from a contributed package. No idea what it is about, but my guess is these are actually numerical differences coming from different algorithms used to calculate the eigenvalues. For details, please ask the author of the corresponding contributed package. Best, Uwe Ligges On

Re: [R] Difference between comma separated values in column

2014-04-29 Thread arun
Hi, It is better to show the example data using ?dput().  Here, it is not clear whether the columns are character columns or lists. ##If it is the latter case dat1 - data.frame(V1=I(list(1:3, c(1,2,4), c(2,3,4,5))), V2= I(list(c(3,6,5), c(7,10,9), 2:5)))  dat1$V3 - mapply(`c`,mapply(`-`,

Re: [R] Difference between comma separated values in column

2014-04-29 Thread arun
HI, I guess this should be a bit faster. #1st case dat1$V3 - lapply(seq_along(dat1$V2),function(i) c(dat1$V2[[i]][-1] - head(dat1$V1[[i]],-1), tail(dat1$V1[[i]],1))) #2nd case dat2$V3 - unlist(lapply(seq_along(lst1[,2]),function(i) paste(c(lst1[,2][[i]][-1] - head(lst1[,1][[i]], -1),

Re: [R] Difference between times

2014-04-20 Thread Prof Brian Ripley
On 18/04/2014 21:46, David Winsemius wrote: On Apr 18, 2014, at 12:59 PM, Prof Brian Ripley wrote: On 18/04/2014 19:46, Rui Barradas wrote: Hello, The reason why is that you've misspelled CET (not CEST) Neither CET nor CEST are portable time-zone names. We have not been given the 'at a

Re: [R] Difference between times

2014-04-20 Thread Prof Brian Ripley
On 20/04/2014 08:50, Prof Brian Ripley wrote: On 18/04/2014 21:46, David Winsemius wrote: On Apr 18, 2014, at 12:59 PM, Prof Brian Ripley wrote: On 18/04/2014 19:46, Rui Barradas wrote: Hello, The reason why is that you've misspelled CET (not CEST) Neither CET nor CEST are portable

Re: [R] Difference between times

2014-04-20 Thread David Winsemius
On Apr 20, 2014, at 2:16 AM, Prof Brian Ripley wrote: On 20/04/2014 08:50, Prof Brian Ripley wrote: On 18/04/2014 21:46, David Winsemius wrote: On Apr 18, 2014, at 12:59 PM, Prof Brian Ripley wrote: On 18/04/2014 19:46, Rui Barradas wrote: Hello, The reason why is that you've

Re: [R] Difference between times

2014-04-19 Thread Nicola Sturaro Sommacal
Thank you for your reply. I discovered the OlsonNames() function to get the time-zone names in my system. Rui get a warning message when using a not recognized tz. On my system this doesn't succed. I solved as follow: dt1 = as.POSIXct(2014-04-18 09.00, format=%Y-%m-%d %H.%M, tz = Europe/Rome)

Re: [R] Difference between times

2014-04-19 Thread Nicola Sturaro Sommacal
I forgot: sysname release Linux 3.5.0-48-generic version #72-Ubuntu SMP Mon Mar 10 23:18:29 UTC 2014 2014-04-19 14:03 GMT+02:00 Nicola Sturaro Sommacal

[R] Difference between times

2014-04-18 Thread Nicola Sturaro Sommacal
Hi. I am new to POSIX and I'd like to understand the reason of this difference. dt1 = as.POSIXct(2014-03-29 09.00, format=%Y-%m-%d %H.%M) dt2 = as.POSIXct(2014-03-30 09.00, format=%Y-%m-%d %H.%M) dt2-dt1 dt1[1] 2014-03-29 09:00:00 CET dt2[1] 2014-03-30 09:00:00 CEST dt2-dt1 Time difference of

Re: [R] Difference between times

2014-04-18 Thread Rui Barradas
Hello, The reason why is that you've misspelled CET (not CEST) dt1 = as.POSIXct(2014-04-18 09.00, format=%Y-%m-%d %H.%M, tz = CEST) Warning messages: 1: In strptime(x, format, tz = tz) : unknown timezone 'CEST' 2: In as.POSIXct.POSIXlt(as.POSIXlt(x, tz, ...), tz, ...) : unknown timezone

Re: [R] Difference between times

2014-04-18 Thread Prof Brian Ripley
On 18/04/2014 19:46, Rui Barradas wrote: Hello, The reason why is that you've misspelled CET (not CEST) Neither CET nor CEST are portable time-zone names. We have not been given the 'at a minimum' information required by the posting guide, so please read ?Sys.timezone on your system.

Re: [R] Difference between times

2014-04-18 Thread David Winsemius
On Apr 18, 2014, at 12:59 PM, Prof Brian Ripley wrote: On 18/04/2014 19:46, Rui Barradas wrote: Hello, The reason why is that you've misspelled CET (not CEST) Neither CET nor CEST are portable time-zone names. We have not been given the 'at a minimum' information required by the

[R] Difference between two datetimes

2014-01-28 Thread David Fox
I have a data frame with variable datetime which is of class POSIXct. Consecutive observations are separated by 30 minutes. However, some of the differences reported by R give unexpected results. For example consider the following two consecutive entries: par.dat$datetime[5944] [1] 2010-04-04

Re: [R] Difference between two datetimes

2014-01-28 Thread Daniel Nordlund
-Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of David Fox Sent: Tuesday, January 28, 2014 5:15 PM To: r-help@r-project.org Subject: [R] Difference between two datetimes I have a data frame with variable datetime which

[R] Difference between arima(1, 1, 1) of y and arima(1, 0, 1) of diff(y)

2013-07-18 Thread George Milunovich
Dear all, When I run an arima(1,1,1) on an I(1) variable, y, I get different estimates to when I first difference the variable myself, e.g y2-diff(y), and then run arima(1,0,1) on y2. Shouldn't these two approaches give the same output? Any help will be much appreciated. george

[R] Difference between arima(1, 1, 1) for y and arima(1, 0, 1) for diff(y)

2013-07-18 Thread george
Dear all, When I run an arima(1,1,1) on an I(1) variable, e.g. y, I get different estimates to when I first difference the variable myself, e.g y2-diff(y), and then run arima(1,0,1) on y2. Shouldn't these two approaches give the same output? Any help will be much appreciated. george -- View

Re: [R] Difference between arima(1, 1, 1) of y and arima(1, 0, 1) of diff(y)

2013-07-18 Thread Mark Leeds
Hi George: Assuming it's still relevant, the link below will explain why. http://www.stat.pitt.edu/stoffer/tsa2/Rissues.htm On Thu, Jul 18, 2013 at 2:14 PM, George Milunovich george.milunov...@mq.edu.au wrote: Dear all, When I run an arima(1,1,1) on an I(1) variable, y, I get different

Re: [R] Difference between arima(1, 1, 1) of y and arima(1, 0, 1) of diff(y)

2013-07-18 Thread George Milunovich
Hi Mark, This is very helpful!! Much appreciated Sent from my iPad On Jul 19, 2013, at 3:51 AM, Mark Leeds marklee...@gmail.com wrote: Hi George: Assuming it's still relevant, the link below will explain why. http://www.stat.pitt.edu/stoffer/tsa2/Rissues.htm On Thu, Jul 18, 2013 at

[R] Difference between Lloyd and Forgy algorithms used in R built-in kmeans clustering function

2013-06-20 Thread Safiye Celik
Hi, Does anybody know the difference between the Lloyd and Forgy algorithms specified for R's kmeans clustering options? I know how Lloyd works, but I cannot access Forgy's paper and could not find any specific information on the web about how it really differs from Lloyd's method. I appreciate

Re: [R] Difference between Lloyd and Forgy algorithms used in R built-in kmeans clustering function

2013-06-20 Thread Pascal Oettli
Hi, A 5-second search on Internet brought me here: http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Clustering/K-Means Regards, Pascal On 20/06/13 15:57, Safiye Celik wrote: Hi, Does anybody know the difference between the Lloyd and Forgy algorithms specified for R's kmeans

Re: [R] Difference between Lloyd and Forgy algorithms used in R built-in kmeans clustering function

2013-06-20 Thread Safiye Celik
Hi, I searched for a long time and I read this website before asking the question. But it does not answer my issue. Thanks anyway. I digged unto the source code and realized that there is no difference between the implementations of Lloyd and Forgy. In fact, in kmeans.R, the method number is set

Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression

2013-01-28 Thread Olivier Collignon
...@stat.math.ethz.ch Subject: Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression Please define 'mean probabilities'. To compute the C-index or Dxy you need anything that is monotonically related to the prediction of interest, including the linear combination

Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression

2013-01-28 Thread Frank Harrell
For lrm fits, predict(fit, type='mean') predicts the mean Y, not a probability. Frank __ 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

Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression

2013-01-24 Thread Frank Harrell
lrm does some binning to make the calculations faster. The exact calculation is obtained by running f - lrm(...) rcorr.cens(predict(f), DA), which results in: C IndexDxy S.D. nmissing 0.96814404 0.93628809 0.0380833632.

Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression

2013-01-24 Thread Olivier Collignon
Subject: Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression lrm does some binning to make the calculations faster. The exact calculation is obtained by running f - lrm(...) rcorr.cens(predict(f), DA), which results in: C IndexDxy

Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression

2013-01-24 Thread Frank Harrell
differently ? Thank for your help and best regards, OC Date: Thu, 24 Jan 2013 05:28:13 -0800 From: f.harrell@ To: r-help@ Subject: Re: [R] Difference between R and SAS in Corcordance index in ordinal logistic regression lrm does some binning to make the calculations faster. The exact

[R] Difference between two-way ANOVA and (two-way) ANCOVA

2012-07-04 Thread syrvn
Hi! as my subject says I am struggling with the different of a two-way ANOVA and a (two-way) ANCOVA. I found the following examples from this webpage: http://www.statmethods.net/stats/anova.html # One Way Anova (Completely Randomized Design) fit - aov(y ~ A, data=mydataframe) # Randomized

Re: [R] Difference between two-way ANOVA and (two-way) ANCOVA

2012-07-04 Thread peter dalgaard
On Jul 4, 2012, at 15:20 , syrvn wrote: Hi! as my subject says I am struggling with the different of a two-way ANOVA and a (two-way) ANCOVA. I found the following examples from this webpage: http://www.statmethods.net/stats/anova.html # One Way Anova (Completely Randomized Design)

Re: [R] Difference between two-way ANOVA and (two-way) ANCOVA

2012-07-04 Thread Richard M. Heiberger
The usual terminology uses the number of ways to mean the number of factors (categorical or classification variables, with more than one degree of freedom per factor). The term covariate is used for continuous variables, with exactly one df. On Wed, Jul 4, 2012 at 9:20 AM, syrvn ment...@gmx.net

Re: [R] difference between qnorm and qqnorm

2012-05-25 Thread Duncan Murdoch
On 25/05/2012 12:41 PM, QAMAR MUHAMMAD UZAIR wrote: dear all, it will just take you a minute to tell me the difference between qnorm and qqnorm. are they same or is there any difference between them?? They are very different, qqnorm draws a plot, qnorm does a calculation of some of the values

Re: [R] Difference between 10 and 10L

2012-05-04 Thread Prof Brian Ripley
-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of brwin338 Sent: Thursday, May 03, 2012 4:33 PM To: r-help@r-project.org Subject: [R] Difference between 10 and 10L Good Evening We have been searching through the R documentation manuals without success on this one. What

Re: [R] Difference between 10 and 10L

2012-05-04 Thread Petr Savicky
On Thu, May 03, 2012 at 07:32:46PM -0400, brwin338 wrote: Good Evening We have been searching through the R documentation manuals without success on this one. What is the purpose or result of the L in the following? n=10 and n=10L or c(5,10) versus c(5L,10L) Hi. The help page

[R] Difference between 10 and 10L

2012-05-03 Thread brwin338
Good Evening We have been searching through the R documentation manuals without success on this one. What is the purpose or result of the L in the following? n=10 and n=10L or c(5,10) versus c(5L,10L) Thanks Joe Thanks Joe [[alternative HTML version deleted]]

Re: [R] Difference between 10 and 10L

2012-05-03 Thread William Dunlap
tibco.com -Original Message- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of brwin338 Sent: Thursday, May 03, 2012 4:33 PM To: r-help@r-project.org Subject: [R] Difference between 10 and 10L Good Evening We have been searching through the R

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Uwe Ligges
On 08.04.2012 20:39, Bazman76 wrote: Hi there, Can someone explain what the difference between spec.pgram and spec.ar is? I understand that they attempt to do the same thing one using an AR estimation of the underlying series to estimate teh sensity the other using the FFT. However when

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Bazman76
OK so I neeed to understan better what it it they are trying to measure. I understood (incorrectly it seems) that they were simply different methods to get the same result? -- View this message in context:

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Uwe Ligges
On 09.04.2012 17:01, Bazman76 wrote: OK so I neeed to understan better what it it they are trying to measure. I understood (incorrectly it seems) that they were simply different methods to get the same result? Yes. Also note this is a mailing list and you are lucky I was able to remember

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread peter dalgaard
On Apr 9, 2012, at 16:55 , Uwe Ligges wrote: On 08.04.2012 20:39, Bazman76 wrote: Hi there, Can someone explain what the difference between spec.pgram and spec.ar is? I understand that they attempt to do the same thing one using an AR estimation of the underlying series to estimate

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Bazman76
oops sorry n 08.04.2012 20:39, Bazman76 wrote: Hi there, Can someone explain what the difference between spec.pgram and spec.ar is? I understand that they attempt to do the same thing one using an AR estimation of the underlying series to estimate teh sensity the other using the

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Bazman76
Yes I agree, there may be something pathalogical in the way at least one of the models handles the data. That's why I was trying to get a better handle on how the two functions spec.prgm() and spec.ar() work. The data has been processed by a wavelet analysis, so what you are seeing as the raw

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Bert Gunter
On Mon, Apr 9, 2012 at 9:27 AM, Bazman76 h_a_patie...@hotmail.com wrote: Yes I agree, there may be something pathalogical in the way at least one of the models handles the data.  That's why I was trying to get a better handle on how the two functions spec.prgm() and spec.ar() work. The data

Re: [R] Difference between spec.pgram spec.ar

2012-04-09 Thread Prof Brian Ripley
On 09/04/2012 18:52, Bert Gunter wrote: On Mon, Apr 9, 2012 at 9:27 AM, Bazman76h_a_patie...@hotmail.com wrote: Yes I agree, there may be something pathalogical in the way at least one of the models handles the data. That's why I was trying to get a better handle on how the two functions

[R] Difference between spec.pgram spec.ar

2012-04-08 Thread Bazman76
Hi there, Can someone explain what the difference between spec.pgram and spec.ar is? I understand that they attempt to do the same thing one using an AR estimation of the underlying series to estimate teh sensity the other using the FFT. However when applied to teh same data set they seem to be

Re: [R] Difference between two time series

2011-11-21 Thread R. Michael Weylandt
As I said before: please dput() some working data and I'll try to work something up. Without it, the only thing I can reasonably suggest is that perhaps you are looking for the window() function to be applied before min/max. Something like: X - ts(1:48, start = 1, frequency = 4) Y - ts(1:12,

Re: [R] Difference between two time series

2011-11-17 Thread Sarwarul Chy
Hello Michael, Thanks again for your reply. Actually, I am working with wind data. I have some sample data for actual load. scan(/home/sam/Desktop/tt.dat) -tt ## This is the input for the actual output of the generation t = ts(tt, start=8, end=24, frequency=1,) I have another random sequence

Re: [R] Difference between two time series

2011-11-15 Thread Sarwarul Chy
Hello, Can you please help me with this? I am also stack in the same problem. Sam -- View this message in context: http://r.789695.n4.nabble.com/Difference-between-two-time-series-tp819843p4073800.html Sent from the R help mailing list archive at Nabble.com.

Re: [R] Difference between two time series

2011-11-15 Thread R. Michael Weylandt
It's not clear what it means for the differences to be of increasing order but if you simply mean the differences are increasing, perhaps something like this will work: library(caTools) X = cumsum( 2*(runif(5e4) 0.5) - 1) # Create a random Walk Y = runmean(X, 30, endrule = mean, align = right)

Re: [R] Difference between two time series

2011-11-15 Thread Sarwarul Chy
Hello Michael, Thanks for your reply. What I want to do is something like this? For example, I have a continuous time series y=x(t), and another discrete time series z=w(t). Xdiff(i)=Max. difference between x(t) and w(t) in interval i Ndiff(i)=Min. difference between x(t) and w(t) in interval

Re: [R] Difference between two time series

2011-11-15 Thread R. Michael Weylandt
Can you post working examples of your data using the dput() function? There are so many types of time series in R and so many different things you could mean that it's just easier to work with real data. Michael On Tue, Nov 15, 2011 at 4:28 PM, Sarwarul Chy sarwar.sha...@gmail.com wrote: Hello

[R] difference between foo$a[2] - 1 and foo[2,a] - 1

2011-11-02 Thread Rebecca Hiller
Hallo Can anyone tell me the difference between foo$a[2] - 1 and foo[2,a] - 1 ? I thought that both expressions are equivalent, but when I run the following example, there is obviously a difference. foo - data.frame(a=NA,b=NA) foo a b 1 NA NA foo$a[1] - 1 foo$b[1] - 2 foo$a[2] - 1

Re: [R] difference between foo$a[2] - 1 and foo[2,a] - 1

2011-11-02 Thread Jeff Newmiller
Columns in data frames must all have the same number of elements. Your first example attempts to violate that, because it works with a single column. The second example works on the entire data frame, so it is able to lengthen the other column to match.

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