Bert Gunter wrote: > > Yes. Don't do this. > > (what you probably really want to do is fit a model with age as a factor, > which can be done statistically e.g. by logistic regression; or > graphically > using conditioning plots, e.g. via trellis graphics (the lattice package). > This avoids the arbitrariness and discontinuities of binning by age > range.) > >
Moleps' reply: the reviewer wants it. Dieter: Sigh. Too often have received such a request, asking for all pairwise tests of each age groups. Applying the most generic Bonferroni correction often ends the debate quickly. Dieter -- View this message in context: http://n4.nabble.com/Data-manipulation-problem-tp1751932p1819579.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.