Jean, Your test works fine. I don't know, for the creation of the marrayRaw file I used some marrayInfo files created with the old BioC version. Might there be some incompartiblity? Here's what I get using my marrayRaw file > library(marray) > x <- AZRAW[-c(1:10),] Loading required package: marrayClasses Error in .requirePackage(package) : Unable to find required package "marrayClasses" In addition: Warning message: There is no package called 'marrayClasses' in: library(package, character.only = TRUE, logical = TRUE, warn.conflicts = warn.conflicts, Joern On 5/21/04 14:41, "Jean Yee Hwa Yang" <jean@biostat.ucsf.edu> wrote: > Hi Joern, > > Can you test the following: > > library(marray) > data(swirl) > x <- swirl[-c(1:10),] > summary(x) > search() > > and see if the subset operation is working on your computer. > > Cheers > > Jean > > > On Fri, 21 May 2004, Joern Kamradt wrote: > >> Hi, >> I just updated to the bioconductor 1.4 version on a new machine (not having >> the old bioconductor version running). I created a marrayRaw file with the >> marray package. I would like to modify this marrayRaw file by e.g. deleting >> the first 10 rows using command >> AZRAWmod <- AZRAW[-c(1:10),] >> Each time I try this the program tells me that marrayClasses need to be >> loaded but cannot be found in the library. >> This command worked just fine in the old bioc version. Any help appreciated! >> >> Joern >> >> _______________________________________________ >> Bioconductor mailing list >> Bioconductor@stat.math.ethz.ch >> https://www.stat.math.ethz.ch/mailman/listinfo/bioconductor >> > -- __________________________ Joern Kamradt, MD Cancer Genetic Branch National Human Genome Research Institute National Institutes of Health 50 South Drive, building 50, room 5147 Bethesda, MD 20892-8000, USA Phone#: +1 (301) 496 5382 FAX#: +1 (301) 402 3241 Email: jkamradt@nhgri.nih.gov Website: www.genome.gov