This is probably a very basic question. I want to understand factors but I am not sure where to turn. Looking up factor in the Chambers book doesn't even show up in the index. Maybe I am just slow but ?factor doesn't help either. Would someone please point me to a very basic tutorial where I can see what the usefullness of factors is (so far they have just gotten in the way).
Thank you. Kevin ______________________________________________ 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.