[R-sig-ME] Estimated scale in R 2.8.1

[Ben Bolker]

  You have to explicitly write

lme4:::sigma(model)

because in this version of lme4 "sigma" is hidden within
the package namespace.  (The triple colon is S4 magic
for extracting an otherwise hidden function from
a namespace.)

  Ben

Nola M. Stephens wrote:
> Thanks for the suggestion. But when I try sigma(model), I get this error 
> message: could not find function "sigma". Any other thoughts?
> 
> Thanks!
> nola
> 
> Ben Bolker wrote:
>>   Your mileage may vary, but I have found
>>
>> lme4:::sigma(model)
>>
>> to be a reasonably reliable way to get it.
>>
>>   Ben Bolker
>>
>> Nola Stephens wrote:
>>> Hi,
>>> When using earlier version of R (2.6.2), I got a scale factor for an
>>> lmer model (where family=binomial). But after downloading R version
>>> 2.8.1, I'm unable to find this value.
>>>
>>> I'd really appreciate some advice on how to find this.
>>> Thanks!
>>> nola
>>>
>>> _______________________________________________
>>> R-sig-mixed-models at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
>>


-- 
Ben Bolker
Associate professor, Biology Dep't, Univ. of Florida
bolker at ufl.edu / www.zoology.ufl.edu/bolker
GPG key: www.zoology.ufl.edu/bolker/benbolker-publickey.asc