It's not R nor is it open source, but G*Power 3 is free: http://www.psycho.uni-duesseldorf.de/abteilungen/aap/gpower3/
Apparently the new version (for Windows -- Mac version is lagging) includes Poisson and logistic regression. On Tue, Jul 14, 2009 at 3:04 PM, <ukoe...@med.uni-marburg.de> wrote: > Dear all, > my colleague (a statistician - not yet using R) aked me, if there is > a R package comparable to the software "PASS" (Power Analysis and Sample > Size Procedures), comprising about 150 procedures. > I found the R package "pwr". Are there other (more comprehensive) power > analysis packages? > > > Many thanks! > Udo > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.