Thanks a lot. That helped. Regards Bharath
On Tue, Feb 19, 2013 at 10:53 AM, Romain Francois <[email protected]>wrote: > _ is defined in the Rcpp namespace, so perhaps you want to add : > > using namespace Rcpp ; > > somewhere on top. > > Also, you could use mat.row(1) instead of mat(1,_) > > Romain > > Le 19/02/13 16:49, Bharath Govindarajan a écrit : > > Hi , >> >> I am trying a simple example to assign entire rows to a >> Rcpp::NumericMatrix. I read the Rcpp sugar document and looked at a few >> online >> examples. My simple code below produces errors: >> >> >> #include <iostream> >> #include <Rcpp.h> >> >> using std::cout; >> using std:endl; >> >> // [[Rcpp::export] >> >> void test() >> { >> Rcpp::NumericMatrux mat(100,100); >> int rows = mat.nrow(); >> int cols = mat.ncol(); >> cout << "rows " << rows << endl; >> cout << "cols " << cols << endl; >> Rcpp::NumericVector row2 = mat(1,_); >> cout << "mat(1,_) " << row2 << endl; >> >> >> >> } >> >> >> Error: error: '_' was not declared in this scope >> >> Thank you >> Bharath >> > > > -- > Romain Francois > Professional R Enthusiast > +33(0) 6 28 91 30 30 > > R Graph Gallery: > http://gallery.r-enthusiasts.**com<http://gallery.r-enthusiasts.com> > > blog: > http://romainfrancois.blog.**free.fr<http://romainfrancois.blog.free.fr> > |- http://bit.ly/14LJhmm : bibtex 0.3-5 > `- http://bit.ly/RE6sYH : OOP with Rcpp modules > > ______________________________**_________________ > Rcpp-devel mailing list > [email protected]**project.org<[email protected]> > https://lists.r-forge.r-**project.org/cgi-bin/mailman/** > listinfo/rcpp-devel<https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel> >
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