On Tue, Aug 24, 2010 at 4:18 PM, Ted Harding <ted.hard...@manchester.ac.uk> wrote:
> So, on those grounds, I doubt its wisdom (and would prefer > giving the advice to bracket things, as in "x<(-3)". It's > a potential syntactic trap, but it's only one of many which > can be avoided in similar ways, and I think it's better to > teach avoidance rather than warning after the event. Actually I think its better to teach _testing_ since it is hard to teach all the things to avoid - they're not all listed in Patrick Burns' R Inferno! (This particular problem *is* listed on page 49 of said marvellous tome). Barry ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel