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RNGs.cpp
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36 lines (32 loc) · 1.25 KB
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// -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
//
// RcppRNGs.cpp: RNG example
//
// Copyright (C) 2012 - 2016 Dirk Eddelbuettel and Romain Francois
//
// This file is part of RcppExamples.
//
// RcppExamples is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 2 of the License, or
// (at your option) any later version.
//
// RcppExamples is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with RcppExamples. If not, see <http://www.gnu.org/licenses/>.
#include <Rcpp.h>
using namespace Rcpp;
// [[Rcpp::export]]
DataFrame RcppRNGs(const int n) {
NumericVector xn = rnorm(n);
NumericVector xt = rt(n, 1.0);
NumericVector xp = rpois(n, 1.0);
// create a new data frame to return drawns
return DataFrame::create(Named("rnorm") = xn,
Named("rt") = xt,
Named("rpois") = xp);
}