[R] Hierarchical Power Analysis

[Downey, Patrick]

Hello,

A colleague is trying to do a fairly complicated power analysis for a
project. The project would be evaluating random assignment to one of three
conditions within each of 8 sites. The dependent variable would be binary
(we do not care at this point whether it would be analyzed with logit or
probit). 

We can simulate the data in a bunch of iterations and do analyses in each
iteration, but it seems like there might be an easier way. Are there any
packages in R with the capability to do such power analyses?

Thanks,
Mitch