[R-sig-ME] Negative binomial mixed effects modeling
David Atkins
datkins at u.washington.edu
Wed May 12 17:36:14 CEST 2010
My preference would be to use MCMCglmm, which will fit an over-dispersed
Poisson GLMM (ie, an extra observation-level random-effect is included
to capture the over-dispersion).
If you specifically need to fit a negative-binomial mixed-effects
model... then I don't have anything to add over the other's points.
cheers, Dave
David Zajanc wrote:
> Hi,
>
>
>
> I am looking into ways to fit a negative binomial mixed effects model to
> our data, but have not found any obvious methods in searching through
> the archives of this list. I noticed suggestions for using the
> quasipoisson distribution, but our dataset appears better suited for the
> negative binomial model, based on past analyses using GLM. It appears
> that "glmer" of package "lme4" is not currently capable of fitting a
> negative binomial model, though please correct me if I'm wrong about
> this. Any feedback or suggestions would be welcomed.
--
Dave Atkins, PhD
Research Associate Professor
Department of Psychiatry and Behavioral Science
University of Washington
datkins at u.washington.edu
Center for the Study of Health and Risk Behaviors (CSHRB)
1100 NE 45th Street, Suite 300
Seattle, WA 98105
206-616-3879
http://depts.washington.edu/cshrb/
(Mon-Wed)
Center for Healthcare Improvement, for Addictions, Mental Illness,
Medically Vulnerable Populations (CHAMMP)
325 9th Avenue, 2HH-15
Box 359911
Seattle, WA 98104?
206-897-4210
http://www.chammp.org
(Thurs)
More information about the R-sig-mixed-models
mailing list