[Rcpp-devel] [Rcpp] How can i call a R function in Cpp source code?

[super]

Hello Rcppusers,
  I want to call  a  r function in Cpp code, e.g.
 int  meanC( NumericVector x) {
    return mean(x,_["na.rm"]=TRUE);
}
Here function mean is a r function not rewrittened  Rcpp version's mean. I do know one way to do this:
 int  meanC( Function f,NumericVector x) {
    return f(x,_["na.rm"]=TRUE);
}
Then  meanC(mean,1:3)
but can i hidden the true r function called ?  Is  r functions packed into some namespace?



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