On 12/9/2008 6:32 PM, Farrel Buchinsky wrote: > I have used the function power.t.test() (power calculations for one > and two sample t tests) but have noted that it handles the samples as > being the same size. How does one handle sample sizes that are > different. In other words how does one handle unbalanced designs.
library(pwr) ?pwr.t2n.test > Farrel Buchinsky > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Chuck Cleland, Ph.D. NDRI, Inc. (www.ndri.org) 71 West 23rd Street, 8th floor New York, NY 10010 tel: (212) 845-4495 (Tu, Th) tel: (732) 512-0171 (M, W, F) fax: (917) 438-0894 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
