[R] use of do.call and rep
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue May 25 22:44:23 CEST 2004
rep(1:2, each=5) is simpler to parse and comprehend, but I don't think
efficiency comes into this. Did you have some very much larger example in
mind.
On Tue, 25 May 2004, Laura Holt wrote:
> If I use this:
>
> rep(1:2,c(5,5))
>
> I'll get
> 1 1 1 1 1 2 2 2 2 2
>
> Is there a way to do this more efficiently, please?
> Maybe via do.call?
--
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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