[R-sig-ME] adding objects into "glmerMod" fits

[Henrik Singmann]

FWIW, the approach of extending the class via setClass is also the one 
taken by lmerTest. And lmerTest works quite well. See:
https://github.com/cran/lmerTest/blob/master/R/classes.R

Best,
Henrik


Am 04.10.2017 um 00:41 schrieb Ben Bolker:
>    Unfortunately for you, S4 classes are much fussier than S3 classes
> about their composition.  Your only choices, I think, are
> 
> (1) modify the definition of a glmerMod (by copying the entire code of
> the package, or forking it on Github)
> (2) construct a class that extends the glmerMod  (i.e with
> setClass("myGlmerMod", contains="glmerMod"))
> 
> e.g.
> 
>   setClass("myGlmerMod",contains="glmerMod",representation(new="data.frame"))
> 
> seems to work - at least it doesn't complain.
> 
> (3) add the additional information as one or more attributes
> 
> On Tue, Oct 3, 2017 at 5:39 PM, Vito Michele Rosario Muggeo
> <vito.muggeo at unipa.it> wrote:
>> dear all,
>> for some reasons I would like to add some new components (vectors, matrices)
>> to a "glmerMod" fit. I am not familiar with S4, so borrowing from S3 classes
>> my first tentative was
>>
>> o <- glmer(y ~ ..)
>> o at new<-1:3
>>
>> But it clearly does not work. Is there any solution?
>> thanks in advance for your time,
>> best,
>> vito
>>
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>