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

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Aug 28 17:14:19 CEST 2003

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)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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