Dear all I would like to show my audience that some variables are homogenous inside groups but different outside. I can use by with summary for all variables
by(iris[,1:4], iris$Species, summary) what can be quite messy in case of more than few variables and about 8 groups or densityplot for one variable densityplot(~Petal.Length | Species, iris) I have two questions: 1. Is there any other plot to show all variables at once? Something like densityplot(~iris[,1:4] | Species, iris) 2. Is it possible to evaluate homogenity of many (20-30) variables inside groups by some other function/table/graph? Thank you Petr Pikal [EMAIL PROTECTED] ______________________________________________ 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.
