Thank you. I stand corrected.
Cheers, Bert On Mon, Oct 21, 2013 at 1:17 AM, Prof Brian Ripley <rip...@stats.ox.ac.uk> wrote: > On 18/10/2013 15:12, S Ellison wrote: >> >> Transferred from R-help: >>>> >>>> From: S Ellison >>>> Subsetting using subset() is perhaps the most natural way of >>>> subsetting data frames; perhaps a line or two and an example could >>>> usefully be included in the 'Working with data frames' section of the R >>>> Intro? >>> >>> >>> From: Bert Gunter [mailto:gunter.ber...@gene.com] >>> The R Intro Manual was largely or entirely the work of Bill Venables >>> some years ago. So it is not really a part of R's maintained document >>> system and has thus not been kept up to date with changes like the >>> convenience function, subset(), which is basically a wrapper for "[]" >>> . >>> >>> This is not to say that your suggestion is not worthwhile, only to >>> explain why it probably won't be acted upon. > > > No, this is deliberate and R-intro is kept up-to-date (although it remains > an introduction, not a full manual). > > Some of us think convenience functions such as subset() and transform() were > mistakes, not least as we see the problems they cause when people try to use > them in functions and packages. Sooner or later you will need to learn to > use indexing, and knowing about two systems with different scoping rules is > too confusing for quite a few R users. > >> >> It's trivial enough that I could offer a 3-line patch if someone has time >> and inclination to add it... >> >> S Ellison > > > -- > Brian D. Ripley, rip...@stats.ox.ac.uk > Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ > University of Oxford, Tel: +44 1865 272861 (self) > 1 South Parks Road, +44 1865 272866 (PA) > Oxford OX1 3TG, UK Fax: +44 1865 272595 -- Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
