Dear R Users, I have been trying to fit models using Umacs. However I seem to be lost in specifying random effects. Can anyone advise me (if possible with a small hierarchical or mixed models data set) on how one can specify the random effects sampling algorithm or possibly point me to the examples or papers where hierarchical models were fitted using Umacs. Regards, -- Luwis Diya, Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat), Kapucijnenvoer 35 blok d - bus 7001, 3000 Leuven, Belgium Tel: +32 16 336886 or +32 16 336892 Fax: +32 16 337015 [[alternative HTML version deleted]]