Hi, On Tue, May 18, 2010 at 10:50 AM, John Lande <john.land...@gmail.com> wrote: > dear all, > > we am trying to improve the performance of my R code, with the implentation > of some function with custom C code. > we found difficult to import and export/import data structure such us > matrices or data.frame into the external C functions. > > we already tried the solution from "Writing R Extensions" form the R > webpage.
Perhaps: (i) you can show us what you've tried and someone can tell help steer you in a better direction (ii) you can check out the Rcpp library. A new version was just released that you can read up on: http://romainfrancois.blog.free.fr/index.php?category/R-package/Rcpp It has lots of examples of how it should be used in its unit tests, etc. -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ R-help@r-project.org 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.
