1 #ifndef STAN_MATH_PRIM_SCAL_PROB_POISSON_LOG_RNG_HPP
2 #define STAN_MATH_PRIM_SCAL_PROB_POISSON_LOG_RNG_HPP
12 #include <boost/math/special_functions/fpclassify.hpp>
13 #include <boost/random/poisson_distribution.hpp>
14 #include <boost/random/variate_generator.hpp>
25 using boost::variate_generator;
26 using boost::random::poisson_distribution;
28 static const char*
function(
"stan::math::poisson_log_rng");
29 static const double POISSON_MAX_LOG_RATE = 30 *
std::log(2);
37 check_less(
function,
"Log rate parameter", alpha, POISSON_MAX_LOG_RATE);
39 variate_generator<RNG&, poisson_distribution<> >
bool check_less(const char *function, const char *name, const T_y &y, const T_high &high)
Return true if y is strictly less than high.
bool check_not_nan(const char *function, const char *name, const T_y &y)
Return true if y is not NaN.
fvar< T > log(const fvar< T > &x)
fvar< T > exp(const fvar< T > &x)
int poisson_log_rng(const double alpha, RNG &rng)
int poisson_rng(const double lambda, RNG &rng)
bool check_nonnegative(const char *function, const char *name, const T_y &y)
Return true if y is non-negative.