I have inherited a table of differential expression results from edgeR (with logFC, logCPM, LR, PValue and FDR). Unfortunately, I do not have access to the original gene counts.
I would like to perform some gene set testing using this data with the Broad MSigDB gene set collections. I was wondering whether the pre-ranked version of camera could work, either with the logFC alone or the LR multiplied by the sign of the logFC as the statistic argument for cameraPR.
I do not really like the idea of the first option but the second does not seem ideal either. If they are entirely non-sensical, are there any better alternatives?