On Sun, Jul 29, 2007 at 04:35:51PM -0400, Feng Qiu wrote: > I'm developing an application program using C++. From my C++ > code, I would call some R program I have written. I' wondering if R provide > some compiler that can compile R program into executable program. I searched
That does not exist to the best of my knowledge. > I might be wrong that R doesn't have complier. What I'm > trying to do is to call R program from C++ code. Any help is highly > appreciated! As you probably know, C++ can 'call' other object code that is linked to it. As for 'calling R', the easiest way is to call an R script using the system() call -- but it is also the most tedious way as you to write the inout data to file, and then read the result data back in. But it is a start, and it may be easiest to debug. A more advanced method would to use Rserve to run a 'headless' R service to which your C++ program can connect over the network. But there you need to be already somewhat familiar with the underlying C/C++ representation of R object. Rserve has simple examples. Next, you can actually embed R inside your C++ application, but that is more advanced. In any event, you may also want to consider the RcppTemplate package which has a host of examples about how to get R and C++ to work better together (without forcing you to use C). The 'Extending R' manual from your R installation is a good starting point for most of this. Hope this helps, Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.