I searched the archives and found questions like this with no definitive answers. I also did not find an answer in the lme4a help files. I'm using lme4a_0.999375-57 in R version 2.12.0 Patched (2010-11-07 r53537) on Platform: i686-pc-linux-gnu (32-bit). I've fit a model with glmer() using the binomial family. I'm wondering what fitted() gives on the result. It appears that fitted() on a regular logistic model fit with glm() returns fitted probabilities. It looks like the same behaviour occurs with a glmer() object, but some confirmation would be nice. Kevin
Kevin E. Thorpe Biostatistician/Trialist, Knowledge Translation Program Assistant Professor, Dalla Lana School of Public Health University of Toronto email: kevin.thorpe at utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016