This is a duplicate question, right? On Jun 6, 2013, at 12:58 PM, Rebecca Greenblatt wrote:
> Looking to determine sample sizes for both my experimental and control > groups (I want only a small portion of my participants in my experimental > condition) in order to compare population means. I would be able to > estimate standard deviation beforehand. > > I'm using the bpower function from the Hmisc R package, specifically > bsamsize to compare population proportions, but was wondering if there was > an equivalent function for comparing means. > > -- > Rebecca Greenblatt > > [[alternative HTML version deleted]] > David Winsemius Alameda, CA, USA ______________________________________________ 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.
