I have two sets of points, called path and centers. For each point in path, I would like an efficient method for finding the ID of the closest point in centers. I would like to do this in R. Below ...

Suppose one uses NumericVector and the other uses vector<double> in their Rcpp code. Is there notable difference between the two usages, especially in performance?

I am attempting to use the Rcpp11 package in r from it's source over at: devtools::install_github("Rcpp11/Rcpp11") I read here: http://blog.r-enthusiasts.com/2014/05/27/disambiguating-rcpp11-and...