Hi, I am using SAM to identify differentially expressed genes in a set of microarrays, but I want to select a value of False Discovery Rate for the cut-off instead of using the delta. Does anyone know which parameter to introduce to do so? Or any function to get the delta for a specific FDR? Thank you all, -- Hernando Martínez Vergara [[alternative HTML version deleted]]

If you use the R package siggenes, the function findDelta does the trick. Best, Holger -------- Original-Nachricht -------- > Datum: Mon, 21 Jun 2010 17:14:26 +0100 > Von: "Hernando Mart?nez" <hernybiotec at="" gmail.com=""> > An: Bioconductor at stat.math.ethz.ch > Betreff: [BioC] selection of dif.exp.genes defining FDR in SAM > Hi, I am using SAM to identify differentially expressed genes in a set of > microarrays, but I want to select a value of False Discovery Rate for the > cut-off instead of using the delta. Does anyone know which parameter to > introduce to do so? Or any function to get the delta for a specific FDR? > Thank you all, > > -- > Hernando Mart?nez Vergara > > [[alternative HTML version deleted]] > -- GMX DSL: Internet-, Telefon- und Handy-Flat ab 19,99 EUR/mtl. Bis zu 150 EUR Startguthaben inklusive! http://portal.gmx.net/de/go/dsl