[R] how to write a periodic function in R?
Prof Brian Ripley
ripley at stats.ox.ac.uk
Mon Jul 25 17:51:23 CEST 2005
On Mon, 25 Jul 2005 lma5 at ncsu.edu wrote:
> My question is how to write a periodic function in R.
> for example if there is a function f(x) that
> f(x)=f(x+4), for -2<x<2, f(x)=x
> how to write it in R?
f((x+2)%%4 - 2) is one way.
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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