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Hello, I am struggling to produce an MDS plot using the randomForest package with a moderately large data set. My data set has one categorical response variables, 7 predictor variables and just under 19000 observations. That means my proximity matrix is approximately 133000 by 133000 which is quite large. To train a random forest on this large a dataset I have to use my institutions high

I encounter such problem with lmer under FreeBSD, but not under Windows. Anyone knows why? Thanks. > example(lmer) lmer> (fm1 <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy)) Error in UseMethod("as.logical") : no applicable method for "as.logical" > traceback() 9: as.logical(EMverbose) 8: as.logical(EMverbose) 7: lmerControl() 6:

Hi all, I'm interested in doing a multiple density plot on a number of columns in a dataframe. >DF lineA.1 lineA.2 lineB.1 lineB.2 r1 5.355354 6.665575 10.288498 11.74750 r2 3.643415 5.427600 11.407112 13.97065 r3 5.813674 6.438502 9.628871 11.57456 r4 5.241340 5.125049 10.456221 12.35381 r5 4.640885 8.635518 8.344704 11.98484 r6 4.559852 6.416171 10.419599 10.89247 r7

Dear R-help - Thanks to those who replied yesterday (Christos H. and Thomas L.) regarding my question on coxph and model formula, the answers worked perfectly. My new question involves the following. I want to run several coxph models (package survival) with the same dataset, but different subsets of that dataset. I have found a way to do this, described below in functions subwrap1 and

Hello - I am wanting to create some Cox PH models with coxph (in package survival) using different datasets. The code below illustrates my current approach and problem with completing this. ### BEGIN R SAMPLE CODE ############################## library(survival) #Define a function to make test data makeTestDF <- function(n) { times <- sample(1:200, n, replace = TRUE) event

Hi, Can anyone help me of the affylmGUI package, I can't get it work and searched for google but can't find any proper solutions. I get the error information each time when I load my cells files, which are shown in the following links. ------------- http://clarezoe.googlepages.com/1.png http://clarezoe.googlepages.com/2.png http://clarezoe.googlepages.com/3.png ------------- Errors also

Had some packages fail install so I updated to today's R-beta release. On updating packages the following packages still fail. sessionInfo follows. Mark Warning messages: 1: In install.packages(update[instlib == l, "Package"], l, contriburl = contriburl, : installation of package 'MANOR' had non-zero exit status 2: In install.packages(update[instlib == l,

Hi all, I've been trying out the code from Chamber's "Classes and Methods in the S language": http://www.omegahat.org/RSMethods/Intro.pdf >From my session: R> whatis <- function(object) paste( "sdw" ) R> setMethod( "whatis", "vector", function(object) paste( "cswdvcr" ) ) R> dumpMethod( "whatis",

I can compile RSPython without difficulty, been when I try to load it, I get the error messages below. Also below are some cryptic warnings I get on R boot (in case these are pertinent) and my sessionInfo(). Any help is appreciated. Thanks, Mark Warning messages: 1: In .updateMethodsInTable(fdef, where, attach) : Couldn't find methods table for "conditional", package

In the following snippet plot(1:10,1:10,type="n") points(1:5,1:5,pch="+") points(6:10,6:10,pch=20) legend(5,5, c("A","B"), pch=c("+",20)) I want to get a legend with a "+" and a solid circle (pch=20). However, what I get in the legend is "+" and "2". How can I get a "+" and a solid circle? thanks, Steve

I am having trouble getting tcltk package to load on openSuse 10.2 running R-devel. I have specifically put my /usr/share/tcl directory in my PATH, but R doesn't seem to see it. I also have installed tk on my system. Any ideas on what the problem is? Also, note that I have some warning messages on starting up R, not sure what they mean or if they are pertinent. Thanks, Mark Warning

Hi All, I tried to install AnnotationDBI like so: source("http://bioconductor.org/biocLite.R") biocLite("AnnotationDbi") and got this error: .... Loading required package: RSQLite Error in dyn.load(file, ...) : unable to load shared library '/RHEL3/local/lib64/R/library/ RSQLite/libs/RSQLite.so': /RHEL3/local/lib64/R/library/RSQLite/libs/RSQLite.so: undefined

Hi everyone, I have been making a fair amount of figures in R recently that I've been touching up with Illustrator and I've found a difference between pdf and ps files and I was wondering if someone could enlighten me about them. While the figures look the same, the ps version tends to have truncated strings. The last character of short strings tends to be on a string of its own, located

Dear list, I've recently become interested in comparing the spectral estimates using the different methods ("pgram" and "ar") in the spectrum() function in the stats package. With many thanks to the authors of these complicated functions, I would like to point out what looks to me like a bit of an inconsistency -- but I would not be surprised if there is good reasoning

I may be making a simple error, but I've looked at the str() of the resulting objects and I can't see any obvious reason I'm having the problem I am having, so I am reaching out to the R-help group. ?I am generating a string in my code. ?When I make a slight modification (add a comma at the end using my "lastcomma" function), I can no longer successfully write that string to

Lately R has been behaving strange on my Linux (Ubuntu 7.10) machine, with occasional segfaults. Today something else and reproducible happened: If I type the code below (meant for calibrating data), I get the error message that "the C stack usage is too close to the limit". calcurve <- cbind(1:2e4, 1:2e4, 1:2e3); #dummy curve, real one is more complex caldist <-

Hello One of my packages, untb_1.3-2, passes R CMD check under MacOSX (and apparently the systems used in the package check summary page on CRAN) but fails with the following message on R-2.6.0.tgz compiled last night on my (home) linux box. I hasten to add that I have never seen this error before on home-compiled pre-releases of R-2.6.0. Can anyone help me understand what is going on?

this is not a problem with R but a request for related advice. i am trying to run a lengthy batch job from my home. the OS is ... Linux jedi.bwh.harvard.edu 2.4.22-openmosix1smp #1 SMP Fri Sep 5 01:05:37 CEST 2003 i686 athlon i386 GNU/Linux i start the job and put it in the background. while i am connected, all is well. eventually my ISP shuts down the connection if i do not do any input.

Dear R-help, I would like to include the documentation of an R function in an *.rnw document processed by Sweave. Because I'm sharing my *.rnw files with colleagues under Linux and Windows (I'm on Mac OS X), I would like a pure R solution. The naive approach doesn't work, because Sweaving this *.rnw file: -------- tmp.rnw -------- \documentclass{article} \begin{document}

dear all, I am writing a sweave documentation for my analysis, and I am plotting huge scatter plot data for microarray. unlucly this take a lot of resource to my pc because of the quality of the image which is to high (I see the PC get stuck for each single spot). how can I overcome this problem? is there a way to make lighter image? john [[alternative HTML version deleted]]