Re: [R] Question about lrandom effects specification in lme4

2008-12-05 Thread Douglas Bates
On Thu, Dec 4, 2008 at 6:21 PM, Bert Gunter <[EMAIL PROTECTED]> wrote: > Folks: > Suppose I have 3 random effects, A,B, and C. Using the older lme() function > (in nlme) it was possible (using the pdMat classes) to specify that they are > uncorrelated with identical variances. Is it possible to d

[R] Question about lrandom effects specification in lme4 : Correction

2008-12-04 Thread Bert Gunter
... Of course what I should have said is: lmer( y ~ ... + (-1+A|Grp) + (-1+B|Grp) + (-1+C|Grp)) Cheers, Bert Gunter Genentech __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://ww

[R] Question about lrandom effects specification in lme4

2008-12-04 Thread Bert Gunter
Folks: Suppose I have 3 random effects, A,B, and C. Using the older lme() function (in nlme) it was possible (using the pdMat classes) to specify that they are uncorrelated with identical variances. Is it possible to do this with lmer? My understanding is that if I specify them as lmer( y ~ ...