[R-sig-ME] GLMM family=binomial: link identity vs link logit

[maggenga at libero.it]

Sorry, i was wrong. I want say lme4 package.


But "glmer(...,family=binomial(link="identity")) " give me same results

as

"glmer(...,family=binomial(link="logit")) "

Why?

I want interpret the coefficients as risk difference and not OR

Thank you very much

Davide



>>----Messaggio originale----
>>Da: bbolker a gmail.com
>>Data: 26/02/2013 23.40
>>A: <r-sig-mixed-models a r-project.org>
>>Ogg: Re: [R-sig-ME] GLMM family=binomial, link identity
>>
>>maggenga a ... <maggenga a ...> writes:
>>
>>> 
>>> Hi,
>>> I'm phd student in medical statistics.
>>> I would like know the R-way to perform the identity link 
(family=binomial) 
>in
>>lmer (ade4 package).
>>
>>  How about
>>
>>glmer(...,family=binomial(link="identity")) 
>>
>>?
>>
>>See ?family in base R.
>>
>>Warning: this is likely to be fragile (as fitting with non-standard
>>link functions often is).
>>
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>
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