I've got a colleague who's using a GLMM to analyse her data, and I've told her that she needs to include an offset. However, glmmPQL doesn't seem to allow one to be included. Is there anyway of doing this? Bob -- Bob O'Hara Rolf Nevanlinna Institute P.O. Box 4 (Yliopistonkatu 5) FIN-00014 University of Helsinki Finland Telephone: +358-9-191 23743 Mobile: +358 50 599 0540 Fax: +358-9-191 22 779 WWW: http://www.RNI.Helsinki.FI/~boh/
"Anon." <bob.ohara at helsinki.fi> writes:> I've got a colleague who's using a GLMM to analyse her data, and I've > told her that she needs to include an offset. However, glmmPQL > doesn't seem to allow one to be included. Is there anyway of doing > this?We just discovered and fixed a similar problem in the GLMM function in the lme4 package. I have uploaded the 0.2-4 release of lme4 to CRAN. Please wait a few days for it to be transferred to the packages directory and for a Windows package to be created then try it. Remember to check for version 0.2-4 or later.
Bob,
glmmPQL certainly allows offsets (have a look at the code). Use the offset
function in the fixed effects formula.
James.
"Anon." <bob.ohara@helsinki.fi>
Sent by: r-help-bounces@stat.math.ethz.ch
12/07/2003 12:17 AM
To: r-help <r-help@stat.math.ethz.ch>
cc:
Subject: [R] Offsets in glmmPQL?
I've got a colleague who's using a GLMM to analyse her data, and
I've
told her that she needs to include an offset. However, glmmPQL doesn't
seem to allow one to be included. Is there anyway of doing this?
Bob
--
Bob O'Hara
Rolf Nevanlinna Institute
P.O. Box 4 (Yliopistonkatu 5)
FIN-00014 University of Helsinki
Finland
Telephone: +358-9-191 23743
Mobile: +358 50 599 0540
Fax: +358-9-191 22 779
WWW: http://www.RNI.Helsinki.FI/~boh/
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