On Tue, Mar 4, 2008 at 5:32 PM, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > Try this: > > library(doBy) > summaryBy(. ~ day + treat, exampledata, FUN = c(mean, sd))
Outstanding, so much better. Thanks. ______________________________________________ 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.
