[R] where is internal function of sample()?

[Prof Brian Ripley]

On Mon, 11 Apr 2005, Weijie Cai wrote:

> I am trying to write a c++ shared library for R. I need a function which has 
> the same functionality as sample() in R, i.e., does permutation, sample 
> with/without replacement. Does R have internal sample routine so that I can 
> call it directly?
>
> I did not find it in R.h, Rinternal.h.

That's because it is not in the API. The function is do_sample in 
src/main/random.c.  You could construct an appropriate call with some 
ingenuity.

Please note that R-devel is the list for C-level programming questions, as 
the posting guide points out.

-- 
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)
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