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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; tab-width: 8; -*-
//
// Simple example for the repeated r-devel mails by Abhijit Bera
//
// Copyright (C) 2009 Dirk Eddelbuettel
// Copyright (C) 2010 - 2011 Dirk Eddelbuettel and Romain Francois
#include <RInside.h> // for the embedded R via RInside
int main(int argc, char *argv[]) {
try {
RInside R(argc, argv); // create an embedded R instance
std::string txt = "suppressMessages(library(fPortfolio))";
R.parseEvalQ(txt); // load library, no return value
txt = "M <- as.matrix(SWX.RET); print(head(M)); M";
Rcpp::NumericMatrix M = R.parseEval(txt); // assign mat. M to NumericMatrix
std::cout << "M has "
<< M.nrow() << " rows and "
<< M.ncol() << " cols" << std::endl;
txt = "colnames(M)"; // assign columns names of M to ans and
Rcpp::CharacterVector cnames = R.parseEval(txt); // into str.vec. cnames
for (int i=0; i<M.ncol(); i++) {
std::cout << "Column " << cnames[i] << " in row 42 has " << M(42,i) << std::endl;
}
} catch(std::exception& ex) {
std::cerr << "Exception caught: " << ex.what() << std::endl;
} catch(...) {
std::cerr << "Unknown exception caught" << std::endl;
}
exit(0);
}
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