[R] lmer and scale parameter in glmm model

Douglas Bates bates at stat.wisc.edu
Mon Aug 18 21:32:23 CEST 2008


On Mon, Aug 18, 2008 at 9:27 AM, Ben Bolker <bolker at ufl.edu> wrote:
> Fränzi Korner <fraenzi.korner <at> oikostat.ch> writes:

>> Have you got an answer? I am now working with R 2.7.1.. This R-version does
>> not give the scale parameter in the summary of an lmer-object.

>> Therefore, I would like to calculate the scale parameter by hand, but I did
>> not find out how.

>  One quick answer is that you can retrieve the scale parameter
> by using the sigma function, which is not exported from the lme4
> namespace (but probably? should be):

> lme4:::sigma(obj)

I would export the function if I was more confident that this is the
appropriate value for comparison (and also considered the name more
carefully).

>  The other answer is that you might want to post this
> on the r-sig-mixed list.

I think that should be the R-SIG-Mixed-Models list.



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