Dear Mailing list,
I have mouse gene entrez ids after RNAseq analysis from RSEM and edgeR. I have 13354 gene ids and I am trying to get the gene symbol for the same. I have been doing the following :

symbol <- select(org.Mm.eg.db, keys=ids, keytype="ENTREZID", cols="SYMBOL")
 where ids contains the list of 13354 gene ids

But when I see the result, I get half or less than half symbols for gene ids.
Is there a better way to map these ids to gene symbols?.

Thanks in advance,
Himanshu

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