Boiler plate
As you saw in the previous exercise, the code below does not compile.
#include <Rcpp.h>
using namespace Rcpp ;
double twice(double x){
return x + x
}
Let's modify it.
Este exercicio faz parte do curso
Optimizing R Code with Rcpp
Instruções do exercicio
- Fix the syntax error on the function's return line (line 8).
- Add an
[[Rcpp::export]]decorator so that the function is exported to R.
exercicio interativo prático
Tente este exercicio completando este código de exemplo.
#include
using namespace Rcpp ;
// Export the function to R
double twice(double x) {
// Fix the syntax error
return x + x
}