On Thu, Dec 25, 2014 at 12:41 PM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > Would you say a cube contains a polygon, or a cube is a polygon?
Neither, actually. I'd say a cube is a polyhedron or a square is a polygon. :-) But point taken, of course. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.