*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://bioinf.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("<a href=
http://www.ncbi.nlm.nih.gov/UniGene/clust.cgi?ORG=Hs&CID=",
unigene,">",unigene,"</a>",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*

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