I have logCPM values I'm trying to convert to RPKM. Doing a search, I found you can convert it by doing the following:
RPKM = 2^(logCPM-log2(geneLength))
However, this is giving me negative RPKM values, as most of the gene lengths in log2 form are larger than the logCPM values (unless my math is incorrect.)
Any help would be appreciated.