Re: [R] Functions similar to step() and all.effects() that work for lme() objects?

Dear Jon, The function stepAIC() in Venable´s Ripley´s MASS library does the job. Best wishes Christoph Jon Zadra schrieb: Hello, I make frequent use of the *step()* and, for plotting, *all.effects() *functions for *lm()* objects. I am now doing more with *lme()* random effects models,

Re: [R] Functions similar to step() and all.effects() that work for lme() objects?

On Thu, 24 Jul 2008, Christoph Scherber wrote: Dear Jon, The function stepAIC() in Venable´s Ripley´s MASS library does the job. Actually, it is extractAIC method in the MASS package that does the job for stepAIC() or step(), so if you attach MASS then step() should work. As for

[R] Functions similar to step() and all.effects() that work for lme() objects?

Hello, I make frequent use of the *step()* and, for plotting, *all.effects() *functions for *lm()* objects. I am now doing more with *lme()* random effects models, and haven't been able to find functions similar to *step()* or *all.effects()* which will accept *lme()* objects. Do similar