Hi Glenn, On Mon, Mar 12, 2012 at 5:26 AM, Glenn Lawyer <[email protected]> wrote: > Dear List, > > I am working through the vingette "Exposing C++ functions and classes with > Rcpp modules," and am stuck at section 2.2.1. > > I create a text file with the code for the Uniform class, and successfully > compile it with R CMD SHLIB. > > Can you please tell me how to load it into R so that I can continue with the > example? The vingette clearly shows how to use it once everything is set up, > but does not show how to set things up.
I suspect they want you to either whip the functionality you are using to create a module from into a package of sorts (some documentation for that is at the end of the vignette, but also in other (non Module-specific) Rcpp vignettes). You can alternatively try to load the shared library once you `R CMD SHLIB` it using `dyn.load` (see ?dyn.load). You will definitely need to have Rcpp loaded in your workspace first, though. That may or may not work w/ modules, though ... I never tried, but: > This is, in fact, my main frustration with all of the rcpp documentation. It > consistently assumes a high level of sophistication from its users. Almost > none of the examples work "as is", nor do they give hints as to what > information is missing. I don't know how fair of a complaint that is ... at a minimum, I think you should be familiar with the concepts in the "Writing R Extensions" manual: http://cran.r-project.org/doc/manuals/R-exts.pdf and I don't think it's really unfair for the devs to assume that as a starting point. I guess you're somehow right in the sense that reading through that requires a bit of R sophistication, but what you're trying to do w/ Rcpp is sophisticated :-) Also, the examples using `inline` are the ones you can get away with doing w/o having some R know-how, but once you get into the world of trying to compile external C++ code and include it "seamlessly" into R, you really should do a bit of h/w on the R library/package building process (the R-exts doc above). Hope that helps, -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 _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
