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Hi Thomas, There is an updated approach to the Estrogen example analysis. It is at http://bioinf.wehi.edu.au/marray/bioc2005/estrogen.html which doesn't have the problems of the ibc2004/lab3 example. We have checked it out this afternoon and it works correctly, Keith Satterley Bioinformatics Division The Walter and Eliza Hall Institute of Medical Research Thomas Curtis wrote: >*Hi All,* >** >*I tried to do a run through with the estrogen dataset as described in Lab3: >**http://bioinf.wehi.edu.au/marray/ibc2004/lab3/lab3.html*<http: bio="" inf.wehi.edu.au="" marray="" ibc2004="" lab3="" lab3.html=""> >*but encounted an error when trying to hyperlink the topTable list to >Unigene and GenBank info.* >** >*Following the the code provided in the lab:* > library(hgu95av2cdf) >library(hgu95av2) >geneIDs <- ls(hgu95av2cdf) >geneSymbols <- unlist(as.list(hgu95av2SYMBOL)) >geneNames <- unlist(as.list(hgu95av2GENENAME)) >geneNames <- substring(geneNames,1,40) >unigene <- unlist(as.list(hgu95av2UNIGENE)) >unigene <- gsub("Hs\\.","",unigene) > genelist <- data.frame(GeneID=geneIDs,GeneSymbol=geneSymbols,GeneName=geneNames, >UniGeneHsID=paste("http://www.ncbi.nlm.nih.gov/UniGene/clust.cgi?ORG=Hs&CID=", >unigene,">",unigene,"",sep="")) > *I get the following error:* > Error in data.frame(GeneID = geneIDs, GeneSymbol = geneSymbols, GeneName = >geneNames, : >arguments imply differing number of rows: 12625, 12744 > *How can I rectify this problem so that the number of entries is the same?* >** >*Many Thanks,* >*Tom* > > [[alternative HTML version deleted]] > >_______________________________________________ >Bioconductor mailing list >Bioconductor at stat.math.ethz.ch >https://stat.ethz.ch/mailman/listinfo/bioconductor > >