[R] Unequal sample sizes when calculating power

[Marc Schwartz (via MN)]

On Wed, 2006-01-25 at 09:50 -0500, Farrel Buchinsky wrote:
> Power calculations two sample test for proportions is very useful. Is there
> a way however, to get away from the two samples being of the same size. What
> would happen if one had n=15 in the one sample and n=45 in the other sample.

See ?bpower and ?bpower.sim (along with the other functions on the same
help page) in Frank Harrell's 'Hmisc' package on CRAN.

HTH,

Marc Schwartz
 
P.S. Go Steelers!  :-)