Dear Max, Check out the BUGS software available (free) at http://www.mrc-bsu.cam.ac.uk/bugs/. It is easy to use and there are several packages in R which comport with the varying BUGS programs (R2WinBUGS, bRugs, rbugs, etc.).
Best wishes, Amy Paternostro ______________________________________________ R-help@stat.math.ethz.ch 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.