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]] ______________________________________________ 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.