[R-sig-ME] Problem with bootMer and models with offset

[Ben Bolker]

Martin Hecht <martin.hecht at ...> writes:

> 
> Am 14.10.2014 10:30, schrieb Martin Hecht:
> > Am 14.10.2014 04:16, schrieb Ben Bolker:
> >> Martin Hecht <martin.hecht <at> ...> writes:
> >>
> >>> Hi,
> >>>
> >>> I am using the latest version of R (3.1.1) and lme4 (1.1-7) .
> >>>
> >>> I'm getting some weird implausible bootstrap results from bootMer for a
> >>> model with an offset (models without offset work fine).
> >>>

  OK, I think I see the problem here.  bootMer is able to handle
offsets correctly when they're written in the form

    y ~ x + (1|f) + offset(offset_term)

rather than

    y ~ x + (1|f) , offset=offset_term

(I so rarely use the second form that I forgot to check it -- I think
this is just a hole in bootMer).

  Can you see if that fixes your problem?

  Meanwhile, I will add a Github issue.