On Mon, Aug 6, 2012 at 7:35 PM, Marc Schwartz <marc_schwa...@me.com> wrote:
> is.letter <- function(x) grepl("[[:alpha:]]", x)
> is.number <- function(x) grepl("[[:digit:]]", x)
>
Quick follow-up question.I'm always reluctant to create functions that would resemble the method of a function (here, is() ), but would in fact not be a genuine method. So would there be any incompatibility between is() and is.letter(), given that the latter is not a method of the former? Is it good (or acceptable) practice to define is.letter() as above? Would is_letter() be better? Regards Liviu ______________________________________________ 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.
