[R-sig-ME] Problem with bootMer and models with offset
Martin Hecht
martin.hecht at iqb.hu-berlin.de
Tue Oct 14 17:45:51 CEST 2014
this resolved the issue
thanks a lot!!
Am 14.10.2014 16:05, schrieb 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.
>
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--
Dipl.-Psych. Martin Hecht
Institut zur Qualitätsentwicklung im Bildungswesen
Humboldt-Universität zu Berlin
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