Dear all, I have a R script that sometimes provides that error: > myExpressionSet <- new("ExpressionSet", exprs = myexprs, phenoData = myphenoData, annotation = myannotation) Error in data.frame(numeric(n), row.names = nms) : duplicate row.names: 1368290_at, 1368303_at, 1388202_at I'd like to fix that in an automated way in order to avoid the script abortion. Does anyone know how to detect and eliminate duplicate rows in an expression matrix in an automated way? Best regards, Núria [[alternative HTML version deleted]]

Take a look at the function duplicated. You also might want to check that the rows are actually duplicates, not just the rownames. Matt On Fri, Mar 11, 2011 at 11:46 AM, <nqueralt at="" clinic.ub.es=""> wrote: > Dear all, > > > > I have a R script that sometimes provides that error: > > > >> myExpressionSet <- new("ExpressionSet", exprs = myexprs, phenoData = myphenoData, annotation = myannotation) > > Error in data.frame(numeric(n), row.names = nms) : > > ?duplicate row.names: 1368290_at, 1368303_at, 1388202_at > > > > I'd like to fix that in an automated way in order to avoid the script abortion. Does anyone know how to detect and eliminate duplicate rows in an expression matrix in an automated way? > > > > Best regards, > > > > N?ria > > > > > ? ? ? ?[[alternative HTML version deleted]] > > > _______________________________________________ > 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 > -- Matthew N McCall, PhD 112 Arvine Heights Rochester, NY 14611 Cell: 202-222-5880