[R] How to make R running faster

Esmail Bonakdarian esmail.js at gmail.com
Wed May 28 15:26:00 CEST 2008


Neil Shephard wrote:
> 
> Loops are not massively efficient within R.
> 
> Look into using the apply() family of functions
> (eapply()/lapply()/mapply/rapply()/tapply()).

Didn't someone post not too long ago that apply is
internally represented as a for-loop? Or am I not
remembering this correctly?

The reason for apply was that it was more concise but not
necessarily more efficient.

Esmail



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