R has its own way of representing NA's. See, for example, the fts package at CRAN, in particular, the file src/tslib/tslib/utils/numeric.traits.hpp.
Dominick On Mon, Feb 7, 2011 at 5:23 PM, WEI ZHANG <aweizh...@gmail.com> wrote: > I would like to know how can I pass NA from C++ to R. > > For example, for any integer in C++ , if == -999, I would like to set to NA > to pass to R. > > > > Thanks. > > > > _______________________________________________ > Rcpp-devel mailing list > Rcpp-devel@lists.r-forge.r-project.org > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel > > _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel