Stan Math Library  2.11.0
reverse mode automatic differentiation
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 
16 #include <boost/random/normal_distribution.hpp>
17 #include <boost/math/special_functions/fpclassify.hpp>
18 #include <boost/random/variate_generator.hpp>
19 
20 namespace stan {
21 
22  namespace math {
23 
24  template <class RNG>
25  inline double
26  exp_mod_normal_rng(const double mu,
27  const double sigma,
28  const double lambda,
29  RNG& rng) {
30  static const char* function("stan::math::exp_mod_normal_rng");
31 
34 
35  check_finite(function, "Location parameter", mu);
36  check_positive_finite(function, "Inv_scale parameter", lambda);
37  check_positive_finite(function, "Scale parameter", sigma);
38 
39  return stan::math::normal_rng(mu, sigma, rng)
40  + stan::math::exponential_rng(lambda, rng);
41  }
42  }
43 }
44 #endif
45 
46 
47 
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:19
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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