[R] Existence of non-vectorised functions

ripley@stats.ox.ac.uk ripley at stats.ox.ac.uk
Thu Nov 28 09:19:16 CET 2002

On Tue, 26 Nov 2002, Ravi Varadhan wrote:

> Thanks to Uwe Ligges and Ben Bolker for their responses.  My main concern
> was with the fact that R doesn't issue a warning when the user attempts an
> "if" test with a vector argument.  Splus (at least Splus 6) does do this,
> saying that only the first element is used in testing the condition. I feel
> that R should also give this warning.

It now does in R-devel (and also for while()).

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

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