Re: [R] Problem on glmer

2011-05-17 Thread Zhang,Yanwei
nal Message- From: Dennis Murphy [mailto:djmu...@gmail.com] Sent: Tuesday, May 17, 2011 12:46 PM To: Zhang,Yanwei Cc: r-help@r-project.org Subject: Re: [R] Problem on glmer Hi: This might be helpful: http://glmm.wikidot.com/faq It has some commentary and potential workarounds re gamma GL

Re: [R] Problem on glmer

2011-05-17 Thread Dennis Murphy
h >>CNA > > -Original Message- > From: Dennis Murphy [mailto:djmu...@gmail.com] > Sent: Tuesday, May 17, 2011 3:05 AM > To: Zhang,Yanwei > Cc: r-help@r-project.org > Subject: Re: [R] Problem on glmer > > Hi: > > I believe that the problem with the glmer(

Re: [R] Problem on glmer

2011-05-17 Thread Zhang,Yanwei
. Thanks. Wayne (Yanwei) Zhang Statistical Research >CNA -Original Message- From: Dennis Murphy [mailto:djmu...@gmail.com] Sent: Tuesday, May 17, 2011 3:05 AM To: Zhang,Yanwei Cc: r-help@r-project.org Subject: Re: [R] Problem on glmer Hi: I believe that the problem with the gl

Re: [R] Problem on glmer

2011-05-17 Thread Dennis Murphy
Hi: I believe that the problem with the glmer() call is that you are invoking the Gamma family, which appears not to be implemented at present. See http://r-project.markmail.org/search/?q=r-sig-mixed-models#query:r-sig-mixed-models%20date%3A201105%20+page:8+mid:q2b2uoupejdzmvtl+state:results Den

[R] Problem on glmer

2011-05-16 Thread Zhang,Yanwei
Hi all, I was trying to fit a Gamma hierarchical model using "glmer", but got weird error message that I could not understand. On the other hand, a similar call to the glmmPQL leads to results that are close to what I expect. I also tried to change tha "nAGQ" argument in "glmer", but it did not