Convert RcppArmadillo vector to Rcpp vector

Question

I am trying to convert RcppArmadillo vector (e.g. arma::colvec) to a Rcpp vector (NumericVector). I know I can first convert arma::colvec

Answer 1

I had the same question. I used wrap to do the conversion at the core of several layers of for loops and it was very slow. I think the wrap function is to blame for dragging the speed down so I wish to know if there is an elegant way to do this.

As for Raymond's question, you might want to try including the namespace like: Rcpp::as(wrap(A)) instead or include a line using namespace Rcpp; at the beginning of your code.