[R] Which language is faster for numerical computation?
hadley at rice.edu
Fri Sep 10 17:35:12 CEST 2010
On Fri, Sep 10, 2010 at 10:23 AM, Henrik Bengtsson <hb at stat.berkeley.edu> wrote:
> Don't underestimate the importance of the choice of the algorithm you
> use. That often makes a huge difference. Also, vectorization is key
> in R, and when you use that you're really up there among the top
> performing languages. Here is an example from the official R wiki
> illustrating my points:
> My rule of thumb is:
> Any piece of code can be made twice as fast.
I second this point - the latest version of reshape is 100x faster in
some situations because I came up with a better vectorised algorithm -
it's still all in R.
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
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