similar to: R-package preparation --as-cran behaving unexpectedly

Dear R-experts I would like to read all files from a directory, the files have names "myname0001.txt" etc. I paste the directory plus file names and use "read.delim()". My problem is that some file names are missing, so I get an error and my program stops. Is there a way to check for a null pointer analogous to C, so that I can simply skip non-existent filenames? Please do

Hi, I have a problem executing "library(ROracle)" in R: OS/Software: Redhat 8.0, all available patches applied Oracle 9i v9.2.0.1.0 R v1.7.0 ROracle v0.5-0 DBI v0.1-5 The compilation and installation of ROracle went fine. However when I try to load ROracle I get the following: >> library(ROracle) >Error in dyn.load(x, as.logical(local), as.logical(now)) : > unable

Dear all Just for fun, I have just downloaded the paper mentioned below and checked it with R-1.6.1. Everything is ok with exception of Table 2b, where I get always 1 instead of 0.5: > pbinom(1e15,2e15,0.5) [1] 1 Which value should be correct? Best regards Christian Stratowa ============================================== Christian Stratowa, PhD Boehringer Ingelheim Austria Dept NCE Lead

Cd /xen/xen-unstable/linux/2.6.12-xen0/ Then: make ARCH=xen xconfig Thomas Diederich ************************************************** * Boehringer Ingelheim Pharma GmbH & Co.KG * A Informationsverarbeitung / Diplomant Systemtechnik * * Mail: diederit@ing.boehringer-Ingelheim.com * Phone: +49 (0)6132/77-98151 -----Ursprüngliche Nachricht----- Von:

Dear all I apologize for cross-posting, but first it is accepted custom to thank the repliers and give a summary, and second I have still the feeling that this problem might be a general statistical problem and not necessarily related to microarrays only, but I might be wrong. First, I want to thank Robert Gentleman, Mark Kimpel and Mark Reiners for their kind replies. Robert Gentleman kindly

Dear Spencer Thank you for this extensive explanation of the problem. I was just curious. Best regards Christian ============================================== Christian Stratowa, PhD Boehringer Ingelheim Austria Dept NCE Lead Discovery - Bioinformatics Dr. Boehringergasse 5-11 A-1121 Vienna, Austria Tel.: ++43-1-80105-2470 Fax: ++43-1-80105-2683 email: christian.stratowa at

> Dear expeRts, > > Currently, my colors are as follows: > mycol <- > c("blue1","blue2","blue3","blue4","black","yellow4","yellow3","yellow2","y > ellow1") > heatmap(snp, Rowv=NA, Colv=NA, col=mycol) > > However, I would like to have the following colors: > bright blue ->

Hey. Is ist possible to guarantee CPU Performance to virtual machines? E.g.: I have a 4 CPU host machine. 3 guests are running. Each has 2 CPU. When VM1 needs more resscources than the other 2, can i guarantee that VM1 gets the most Power of the system at this time? Thomas Diederich ************************************************** * Boehringer Ingelheim Pharma GmbH & Co.KG * A

Does anyone know if Xen is currently supporting Itanium on 64 Bit!? Thomas Diederich ************************************************** * Boehringer Ingelheim Pharma GmbH & Co.KG * A Informationsverarbeitung / Diplomant Systemtechnik * * Mail: diederit@ing.boehringer-Ingelheim.com <mailto:diederit@ing.boehringer-Ingelheim.com> * Phone: +49 (0)6132/77-98151

Hey, just pulled the new updates from the repository, and did a male dist, make install and an ./install.sh Then i made an initrd an bootet the system. But when I do an lsmod, it shows me: NOTHING! What''s wrong there?! Thomas Diederich ************************************************** * Boehringer Ingelheim Pharma GmbH & Co.KG * A Informationsverarbeitung / Diplomant

Dear R users, I have a problem computing time differences using R. I have a date that are given using the following format: 20080620.00, where the 4 first digits represent the year, the next 2 ones the month and the last 2 ones the day. I would need to compute time differences between two vectors of this given format. I tried around trying to change this format into any type of time serie

I'm on R 2.1.0. In the "source" function there is a bug preventing the proper use of the chdir option (which simply doesn't work). The problem is that in the function the following line occurs: file <- file(file, "r", encoding = encoding) This overwrites the variable "file" and later causes the check if (chdir && is.character(file)

Dear all, First I apologize for cross-posting, but I think that this could be of interest to BioC users, too. For DNA copy-number analysis I have downloaded PLASQ500K from: http://genome.dfci.harvard.edu/~tlaframb/PLASQ/ After creating sub-directories SND and STD containing 3 Sty Mapping arrays each, I tried to compute parent-specific copy number: > library(PLASQ500K) > psCN <-

I intend to port an R project from Linux to Windows. It involves C code that is loaded via dyn.load(). I could manage to produce a 'dll' File using cygwin which seems to be o.k. Now, using dyn.load("pcr.dll") i get: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library "c:/cygwin/home/pingu/rt-pcr/pcr.dll": LoadLibrary

Dear all, in an LDA analysis with n groups n-1 LD functions result. Implicitly this defines an LD fucntion for the last group. Does there exist code already to explictly construct this LD function? Thanks, Stefan

Dear Ioannis Thank you very much for pointing me to meta-analysis. Although it may not solve my problem with the normalization, it gives me some other options to display the different correlation coefficients. One possibility is the use of Funnel plots, which are even available in library(rmeta). Another possibility is the use of forest-plots, as implemented in rmeta as metaplot. Sorrowly,

Dear All, I wonderif there is a simple way to draw a regression line in the xyplot: more specifically, let: age <- c(20:30, 31:40 ) age.cut <- cut(age, breaks = 2 ) y<- rnorm(20) x <- rnorm(20,4,1) xyplot(y ~ x| age.cut, xlab="x", ylab="y") How to draw (in the plot given by xyplot) the two regression lines (y ~ x) corresponding to the two category

My problem is as follows: i is a list of integers of variable length. Now I want to compute a new vector/array that contains 1's at the positions indicated in i. For example: c(2, 4) -> c(0, 1, 0, 1) Using something like i = i - c(0, i[2:length(i) - 1]); sapply(i, function(x) c(rep(0, x - 1), 1))); faces me with the problem of concatenating the result, which I could somehow not find a

Hi R gurus, I'm getting the following error when trying to build and install an R package: Error in untar2(tarfile, files, list, exdir) : unsupported entry type ?x? I build the package like so: R --no-init-file CMD build mypackage Then try to install it: sudo R --no-init-file CMD INSTALL mypackage.tar.gz ...which dies with the above error. I can extract the archive fine with tar -zxf, so