[R] lme4 and Variable level detection

I am making a little GUI for lme4, and I was wondering if there is a function that automatically detects on which level every variable exists. Furtheremore I got kind of confused about what a random effects model actually calculates. I have some experience with commercial software packages for

Re: [R] lme4 and Variable level detection

On Sat, Feb 28, 2009 at 9:00 AM, Jeroen Ooms j.c.l.o...@uu.nl wrote: I am making a little GUI for lme4, and I was wondering if there is a function that automatically detects on which level every variable exists. Furtheremore I got kind of confused about what a random effects model actually