[R] how to call a C program from R function

[Prof Brian Ripley]

On Thu, 28 Aug 2003, Martin Olivier wrote:

> Hi all,
> 
> I would like to call a C program from R function. I tried to use the 
> .C() function
> without success. I need a very simple example (such as the hello 
> program) to understand
> how it works. Could you give a  such example?

There is one in Writing R Extensions.  `Hello world' be too simple: you do 
need to know how to return results.

> (I use the  1.7.1 Version of R with linux)
> 
> Does it work in the case of a C++ program instead of a C programm?

See Writing R extensions for details and examples.

-- 
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)
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