Daniel Stahl <daniel_stahl <at> operamail.com> writes: > > I would like to do a large number of e.g. 1000 paired ttest using the by-function.
Technical stuff aside: do you really want to do 1000 paired t-tests? Followed by a *** pick-nic? Mmm... Dieter ______________________________________________ R-help@stat.math.ethz.ch 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.