Re: [R] lme model specification problem (Error in MEEM...)

2012-01-06 Thread Ben Bolker
Pascal A. Niklaus ieu.uzh.ch> writes: > In lme, models in which a factor is fully "contained" in another lead to > an error. This is not the case when using lm/aov. > > I understand that these factors are aliased, but believe that such > models make sense when the factors are fitted sequential

[R] lme model specification problem (Error in MEEM...)

2012-01-06 Thread Pascal A. Niklaus
Dear all, In lme, models in which a factor is fully "contained" in another lead to an error. This is not the case when using lm/aov. I understand that these factors are aliased, but believe that such models make sense when the factors are fitted sequentially. For example, I sometimes fit a f

Re: [R] lme model specification

2009-11-15 Thread Douglas Bates
On Sun, Nov 15, 2009 at 7:19 AM, Green, Gerwyn (greeng6) wrote: > Dear all > > this is a question of model specification in lme which I'd for which I'd > greatly appreciate some guidance. > > Suppose I have data in long format > > gene treatment rep Y > 1        1      1  4.32 > 1        1      2

[R] lme model specification

2009-11-15 Thread Green, Gerwyn (greeng6)
Dear all this is a question of model specification in lme which I'd for which I'd greatly appreciate some guidance. Suppose I have data in long format gene treatment rep Y 11 1 4.32 11 2 4.67 11 3 5.09 .. .. .. .. .