How to call and pass parameter to R function in C++? -

i m writing 1 function in r plotting graph. need call function using c++ program.

r program (script.r)

genplot<-function(x,y,outfile) {    plot(outfile)    plot(x,y)    dev.off() } 

c++ program (run.cpp)

#include <iostream.h> using namespace std; int main() {    int x[] = (1,2,3,4,5);    int y[] = (2,3,4,1,3);    genplot(x,y);    #need call r function passing these 2 variables.    return 0; } 

you can use rinside. reading rinside page , come , haven't test yet. basic idea passe data r using rcpp wrappers evalute function string.

#include <rinside.h>   int main(int argc, char *argv[]) {     rinside r(argc, argv);              // create embedded r instance      int x[] = (1,2,3,4,5);     int y[] = (2,3,4,1,3);     r.assign(x,"x");     r.assign(y,"y");     r["outfile"] = "output.txt";        r.parseevalq("genplot(x,y,outfile)");           // eval init string, ignoring returns     exit(0); }