[R-sig-ME] Power analysis for glmer?

[David Duffy]

On Fri, 2 Dec 2011, David Duffy wrote:

> On Thu, 1 Dec 2011, Adam D. I. Kramer wrote:
>>
>> 	I have been looking online for a while and come up dry. Could
>> anybody recommend a paper or library that would give me some idea of how
>> many subjects I would need to detect an effect of a certain size using a
>> mixed-effects binomial model?
>> 
>> --I'm really just trying to get an idea of the scale involved. 10k
>> versus 1m, for example.)
>
> You need to simulate data from your proposed setup.  See
>
> http://glmm.wikidot.com/power-analysis

Oops,

and add a step to dichotomize the continuous outcome at a percentile 
matching your observed data.


-- 
| David Duffy (MBBS PhD)                                         ,-_|\
| email: davidD at qimr.edu.au  ph: INT+61+7+3362-0217 fax: -0101  /     *
| Epidemiology Unit, Queensland Institute of Medical Research   \_,-._/
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