Dear BioC group

I am using the collapseRows function from the WGCNA package, I need to
average expression data from probe sets that map to the same EntrezID. Its
stated that I have to idnetify two arguments rowID (corresponding to probe
set identifiers) and rowGroup (corresponding to the EntrezIDs)

which I did below:

summ=collapseRows(datET=ww, rowGroup=ww[,1], rowID=rownames(ww),
                  method="Average")

the output should be an expression matrix with expression data averaged for
multiple probes tha map to same geneID and rows corresponding to geneIDs. My
problem is in this later part, I don't get gene IDs in the rows, instead
this is what I get.

   GSM97965.CEL.gz GSM97966.CEL.gz GSM97969.CEL.gz GSM97970.CEL.gz
1                2.176576        2.176576        2.176576        2.176576
10               2.176576        2.176576        2.176576        2.176576
100              4.517431        3.414851        3.225376        3.113286
1000            12.330020       12.666929       10.414347       10.479440
10000            7.051655        6.951304        7.111559        8.566242
100009676        2.176576        2.176576        2.359885        2.176576
          GSM97971.CEL.gz GSM97972.CEL.gz
1                2.176576        2.176576
10               2.176576        2.176576
100              3.170813        3.093058
1000            10.300492       10.425190
10000            7.494686        7.415322
100009676        2.176576        2.176576

any help would be much appreciated
Thankss
Alyaa

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