I am using arraQualityMetrics package installed from Bioconductor site and R version that I am using is 2.15.0 The input for the function was eset and for the intgroup argument character vector "Tissue". There is a column named Tissue in my phenoData of the eset. But it still gives me an error saying the elements of intgroup do not match the column names of the pData(eset). I don't know what wrong I am doing. Can anybody suggest anything. Thank You. -- output of sessionInfo(): Error in prepData(expressionset,intgroup=intgroup): all elements of 'intgroup' should match column names of pData(expressionset) -- Sent via the guest posting facility at bioconductor.org.

Dear Sonal thank you for reporting this. Sorry that you have trouble. But we will need more information about your problem to help you. What do you get as output from the following lines of R code: sessionInfo() intgroup str(intgroup) pData(eset) colnames(pData(eset)) Best wishes Wolfgang Jun/1/12 11:16 AM, Sonal [guest] scripsit:: > > I am using arraQualityMetrics package installed from Bioconductor site and R version that I am using is 2.15.0 > > The input for the function was eset and for the intgroup argument character vector "Tissue". There is a column named Tissue in my phenoData of the eset. > > But it still gives me an error saying the elements of intgroup do not match the column names of the pData(eset). > I don't know what wrong I am doing. > Can anybody suggest anything. > Thank You. > > > -- output of sessionInfo(): > > Error in prepData(expressionset,intgroup=intgroup): > all elements of 'intgroup' should match column names of pData(expressionset) > > -- > Sent via the guest posting facility at bioconductor.org. > > _______________________________________________ > Bioconductor mailing list > Bioconductor at r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- Best wishes Wolfgang Wolfgang Huber EMBL http://www.embl.de/research/units/genome_biology/huber