Stan Math Library  2.8.0
reverse mode automatic differentiation
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exp_mod_normal_rng.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_PROB_EXP_MOD_NORMAL_RNG_HPP
2 #define STAN_MATH_PRIM_SCAL_PROB_EXP_MOD_NORMAL_RNG_HPP
3 
4 #include <boost/random/normal_distribution.hpp>
5 #include <boost/math/special_functions/fpclassify.hpp>
6 #include <boost/random/variate_generator.hpp>
22 
23 namespace stan {
24 
25  namespace math {
26 
27  template <class RNG>
28  inline double
29  exp_mod_normal_rng(const double mu,
30  const double sigma,
31  const double lambda,
32  RNG& rng) {
33  static const char* function("stan::math::exp_mod_normal_rng");
34 
37 
38  check_finite(function, "Location parameter", mu);
39  check_positive_finite(function, "Inv_scale parameter", lambda);
40  check_positive_finite(function, "Scale parameter", sigma);
41 
42  return stan::math::normal_rng(mu, sigma, rng)
43  + stan::math::exponential_rng(lambda, rng);
44  }
45  }
46 }
47 #endif
48 
49 
50 
double exponential_rng(const double beta, RNG &rng)
double exp_mod_normal_rng(const double mu, const double sigma, const double lambda, RNG &rng)
bool check_finite(const char *function, const char *name, const T_y &y)
Return true if y is finite.
double normal_rng(const double mu, const double sigma, RNG &rng)
Definition: normal_rng.hpp:20
bool check_positive_finite(const char *function, const char *name, const T_y &y)
Return true if y is positive and finite.

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