Rcpp Version 1.0.7
rexp.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // rexp.h: Rcpp R/C++ interface class library --
4 //
5 // Copyright (C) 2010 - 2016 Douglas Bates, Dirk Eddelbuettel and Romain Francois
6 //
7 // This file is part of Rcpp.
8 //
9 // Rcpp is free software: you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License as published by
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17 // GNU General Public License for more details.
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21 
22 #ifndef Rcpp__stats__random_rexp_h
23 #define Rcpp__stats__random_rexp_h
24 
25 namespace Rcpp {
26 namespace stats {
27 
28 class ExpGenerator : public ::Rcpp::Generator<double> {
29 public:
30 
31  ExpGenerator( double scale_ ) : scale(scale_) {}
32 
33  inline double operator()() const {
34  return scale * exp_rand() ;
35  }
36 
37 private:
38  double scale ;
39 };
40 
41 class ExpGenerator__rate1 : public Generator<double>{
42 public:
44  inline double operator()() const { return exp_rand() ; }
45 };
46 
47 } // stats
48 }
49 
50 #endif
Rcpp::stats::ExpGenerator::ExpGenerator
ExpGenerator(double scale_)
Definition: rexp.h:31
Rcpp::stats::ExpGenerator::operator()
double operator()() const
Definition: rexp.h:33
R::exp_rand
double exp_rand(void)
Definition: Rmath.h:32
Rcpp
Rcpp API.
Definition: algo.h:28
Rcpp::stats::ExpGenerator::scale
double scale
Definition: rexp.h:38
Rcpp::Generator
Definition: random.h:28
Rcpp::stats::ExpGenerator__rate1::operator()
double operator()() const
Definition: rexp.h:44
Rcpp::stats::ExpGenerator
Definition: rexp.h:28
Rcpp::stats::ExpGenerator__rate1
Definition: rexp.h:41
Rcpp::stats::ExpGenerator__rate1::ExpGenerator__rate1
ExpGenerator__rate1()
Definition: rexp.h:43