This has nothing to do with NA. It's just about the size difference. sugar does not make attempt at recycling. Your responsibility.
Romain > Le 22 nov. 2014 à 11:48, Søren Højsgaard <sor...@math.aau.dk> a écrit : > > Dear all, > Came across this: > > #include <Rcpp.h> > using namespace Rcpp; > > //[[Rcpp::export]] > List sumxy(NumericVector x, NumericVector y){ > NumericVector xy = x+y; > NumericVector yx = y+x; > return List::create(xy, yx); > } > > /*** R > x <- c(1,3,5,7) > y <- c(NA,2,4,6,8) > x+y > y+x > sumxy(x, y) > */ > >> x <- c(1,3,5,7) >> y <- c(NA,2,4,6,8) >> x+y > [1] NA 5 9 13 9 >> y+x > [1] NA 5 9 13 9 >> sumxy(x, y) > [[1]] > [1] NA 5 9 13 > [[2]] > [1] NA 5 9 13 8 > > Is this intentional? Apologies if this has been documented anywhere; was > unable to find it. > > Regards > Søren > > > _______________________________________________ > 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