[R-sig-ME] mcmcsamp() with gamma response and log link function in lmer

Ben Bolker bbolker at gmail.com
Tue Dec 13 20:42:00 CET 2011


Ruth Kelly <ruthkelly123 at ...> writes:

> Is it possible to use mcmcsamp() in lme4 after fitting a model with a gamma
> response variable and a log link function?

  I don't think so.

> Is there another package I could use to run the mcmc for this?

  You can try running glmmadmb() from the glmmADMB
package with mcmc=TRUE ...  

best_fm_bio <- glmmadmb(Bio ~ P_pca +(1|Site), family = "Gamma",
 link = "log", mcmc=TRUE)

this hasn't been very thoroughly tested or documented, so do
e-mail me if you run into trouble.

  Ben Bolker




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