hi,

I am trying to merge GEo data from different authors, most are in raw counts and I would convert to log CPM, but one dataset is in Normalized count (DESeq Normalization). Which package can I use to undo the normalization or convert to CPM or do I just merge CPM with DESeq normalization.

Thanks

I would go from normalized counts to CPM. I believe providing the normalized counts to edgeR's cpm will be fine.