Thanks Duncan. You are right; I missed this. Namespaces and full qualification seems the only reliable solution to the general issue though -- right?
Cheers, Bert Bert Gunter "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." -- Clifford Stoll On Mon, Nov 16, 2015 at 7:42 AM, Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > On 16/11/2015 10:22 AM, Bert Gunter wrote: >> >> There is no multiple dispatch; just multiple misunderstanding. >> >> The generic function is "is.numeric" . Your method for factors is >> "is.numeric.factor". >> >> You need to re-study. > > > > I think the problem is with S3. "is.numeric.factor" could be a > "numeric.factor" method for the "is" generic, or a "factor" method for the > "is.numeric" generic. Using names with dots is a bad idea. This would be > all be simpler and less ambiguous if the class had been named > "numeric_factor" or "numericFactor" or anything without a dot. > > Duncan Murdoch ______________________________________________ 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.
