quantitative confidence value
q-value
PMID: 20483222. Comp Biochem Physiol Part D Genomics Proteomics. 2008 Sep;3(3):234-42. Analysis of Sus scrofa liver proteome and identification of proteins differentially expressed between genders, and conventional and genetically enhanced lines.
"After controlling the false discovery rate (FDR</=0.1) using the Storey q value only four proteins (EPHX1, CAT, PAH, ST13) were shown to be differentially expressed between genders (Males/Females) and two proteins (SELENBP2, TAGLN) were differentially expressed between two lines (Transgenic/Conventional pigs)"
A quantitative confidence value that measures the minimum false discovery rate that is incurred when calling that test significant.
To compute q-values, it is necessary to know the p-value produced by a test and possibly set a false discovery rate level.
Adapted from several sources, including
http://.en/wikipedia.org/wiki/False_discovery_rate
http://svitsrv25.epfl.ch/R-doc/library/qvalue.html
FDR adjusted p-value
PERS:Philippe Rocca-Serra
q-value
ready for release