[BioC] create an new AnnotatedDataFrame

[GHAVI-HELM Yad]

Hi all,

I am trying to make an AnnotatedDataFrame with the Biobase package.
Here is my code:


exprsFile<-"D:/exprsData.txt"
exprs<-read.table(exprsFile,header=TRUE,sep="",as.is=TRUE)

pDataFile<-"D:/pData.txt"
pData<-read.table(pDataFile,header=TRUE, sep="", as.is=TRUE)

metaData<-"D:/mData.txt"
mData<-read.table(metaData,header=TRUE,sep="",as.is=TRUE)
metData<-new("AnnotatedDataFrame",data=exprs2,varMetadata=mData)

At this step I have the following error: 
Error in `row.names<-.data.frame`(`*tmp*`, value = c("A", "B")) : 
        length of 'row.names' incorrect

It seems strangle because "A" and "B" are the colnames of exprsData (or the rownames of pData). 

I tried to do :

metData<-new("AnnotatedDataFrame",data=exprs2,varMetadata=mData, row.names=1)

or

rown=rownames(exprs)
metData<-new("AnnotatedDataFrame",data=exprs2,varMetadata=mData, row.names=rown)


but I steel got the same error

hope anyone could help me...


> sessionInfo()
R version 2.5.0 (2007-04-23) 
i386-pc-mingw32 

locale:
LC_COLLATE=French_France.1252;LC_CTYPE=French_France.1252;LC_MONETARY=French_France.1252;LC_NUMERIC=C;LC_TIME=French_France.1252

attached base packages:
 [1] "tcltk"     "splines"   "tools"     "stats"     "graphics"  "grDevices" "utils"     "datasets"  "methods"   "base"     

other attached packages:
      YEAST     convert      marray   tkWidgets      DynDoc widgetTools  arrayMagic  genefilter    survival         vsn        affy      affyio       limma 
   "1.16.0"    "1.10.0"    "1.14.0"    "1.14.0"    "1.14.0"    "1.12.0"    "1.14.0"    "1.14.1"      "2.31"     "2.2.0"    "1.14.2"     "1.4.1"    "2.10.5" 
    Biobase 
   "1.14.1" 
 


Yad.