Rcpp Version 0.12.12
rlogis.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // rlogis.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
11 // the Free Software Foundation, either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // Rcpp is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
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20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__stats__random_rlogis_h
23 #define Rcpp__stats__random_rlogis_h
24 
25 namespace Rcpp {
26 namespace stats {
27 
28 class LogisGenerator : public ::Rcpp::Generator<double> {
29 public:
30 
31  LogisGenerator( double location_, double scale_ ) :
32  location(location_), scale(scale_) {}
33 
34  inline double operator()() const {
35  double u = unif_rand() ;
36  return location + scale * ::log(u / (1. - u));
37  }
38 
39 private:
40  double location ;
41  double scale ;
42 };
43 
44 
45 class LogisGenerator_1 : public ::Rcpp::Generator<double> {
46 public:
47 
48  LogisGenerator_1( double location_) :
49  location(location_) {}
50 
51  inline double operator()() const {
52  double u = unif_rand() ;
53  return location + ::log(u / (1. - u));
54  }
55 
56 private:
57  double location ;
58 };
59 
60 
61 class LogisGenerator_0 : public ::Rcpp::Generator<double> {
62 public:
63 
65 
66  inline double operator()() const {
67  double u = unif_rand() ;
68  return ::log(u / (1. - u));
69  }
70 
71 };
72 
73 } // stats
74 } // Rcpp
75 
76 #endif
double operator()() const
Definition: rlogis.h:51
double operator()() const
Definition: rlogis.h:66
LogisGenerator(double location_, double scale_)
Definition: rlogis.h:31
double operator()() const
Definition: rlogis.h:34
LogisGenerator_1(double location_)
Definition: rlogis.h:48
double unif_rand(void)
Definition: Rmath.h:31
void log(InputIterator begin, InputIterator end, OutputIterator out)
Definition: algorithm.h:469
Rcpp API.
Definition: algo.h:28