I thought that the following command in previous version of BioC was working, but with new version I got an error. So I must be wrong, what should the correct command be? Thanks. > set<-expresso(data, normalize.method="invariantset", bg.correct.method="mas", pmcorrect.method="pmonly",summary.method="liwong") Error in expresso(data, normalize.method = "invariantset", bg.correct.method = "mas", : unused argument(s) (bg.correct.method ...) L

Hi Lizhe Xu > I thought that the following command in previous version of BioC was working, but with new version I got an error. So I must be wrong, what should the correct command be? > Thanks. > > >>set<-expresso(data, normalize.method="invariantset", bg.correct.method="mas", pmcorrect.method="pmonly",summary.method="liwong") > > Error in expresso(data, normalize.method = "invariantset", bg.correct.method = "mas", : > unused argument(s) (bg.correct.method ...) > You could try typing "? expresso" and reading the manual page. If you do that, you will see that the argument is "bgcorrect.method". And as far as I know it has been so forever. Bw Wolfgang -- ------------------------------------- Wolfgang Huber European Bioinformatics Institute European Molecular Biology Laboratory Cambridge CB10 1SD England Phone: +44 1223 494642 Http: www.dkfz.de/abt0840/whuber