I want to call C/C++ in R to do the loops. Is it doable? If my whole code is a big loop, is it better to do the inverse thing, i.e. call R function in C/C++? Whichever is better, is there any online material which guide me the procedure? Thank you! -- View this message in context: http://www.nabble.com/R-and-C-C%2B%2B-for-loop-tp17724633p17724633.html Sent from the R help mailing list archive at Nabble.com.