[R-sig-ME] log of offset for Poisson?

[Ben Bolker]

On 11-04-21 08:25 PM, benton at stat.berkeley.edu wrote:
> Hi:
> 
> I am pretty sure that I need to take the log of the offset variable when
> fitting a Poisson model using glmer, but I was hoping someone might be
> kind enough to confirm this.
> 
> Thanks,

  Yes.  Offsets are added on the scale of the linear predictor.

  When in doubt about this sort of thing, make up a little simulated
example for yourself and see whether you recover the right answer.

  Ben Bolker