Rainer M Krug <[EMAIL PROTECTED]> writes: > Hi > > I know this is a basic question and I know I have done it before but I > can't find the answer any more. > > I have a data set, say: > > F1, F2, Value > > F1 and F2 are Factors. > > I would like to plot > > plot(TheCombinationOf(F1, F2), Value) > > I remember there was a function for TheCombinationOf() but I don't > remember the name. > > I could create a new factor based on F1 and F2, but I would prefer the > other soluytion. > > Any help welcome,
F1:F2 interaction(F1,F2) There are some differences so lookup the help page for the latter. -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ 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.
