Warning: as.numeric reorders factor data
On Sun, 8 Dec 2002, Bud Gibson wrote:
Thanks for the clarification. It's nice to know that there is some systematicity to the behavior. Is this documented anywhere? I did look at the help for as.numeric, and
Yes, in the FAQ no less, Q7.12 in the version I have: ``In any case, do not call `as.numeric()' or their likes directly.'' Ouch....
Brian D. Ripley, ripley at 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 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595