[R] power and sample size for a GLM with Poisson response variable

[Craig A Faulhaber]

Thanks for the functions, James.  I, too, did not understand the 
"constraints" vector in asypow.  Can anyone on the listserve explain this?

Craig

Wassell, James T., Ph.D. wrote:

> Craig,   I found the package asypow difficult to use and it did not 
> yield results in the ballpark of other approaches.   (could not figure 
> out the "constraints" vector).  
>
> I wrote some simple functions, one asy.pwr uses the non-central 
> chi-square distn.
>
>
-- 
Craig A. Faulhaber
Department of Forest, Range, and Wildlife Sciences
Utah State University
5230 Old Main Hill
Logan, UT 84322
(435)797-3892