1 #ifndef STAN_MATH_PRIM_SCAL_PROB_PARETO_RNG_HPP 2 #define STAN_MATH_PRIM_SCAL_PROB_PARETO_RNG_HPP 7 #include <boost/random/exponential_distribution.hpp> 8 #include <boost/random/variate_generator.hpp> 31 template <
typename T_shape,
typename T_scale,
class RNG>
33 const T_scale& y_min,
const T_shape& alpha, RNG& rng) {
34 using boost::exponential_distribution;
35 using boost::variate_generator;
37 static const char*
function =
"pareto_rng";
49 for (
size_t n = 0; n < N; ++n) {
50 variate_generator<RNG&, exponential_distribution<> > exp_rng(
51 rng, exponential_distribution<>(alpha_vec[n]));
52 output[n] = y_min_vec[n] *
std::exp(exp_rng());
scalar_seq_view provides a uniform sequence-like wrapper around either a scalar or a sequence of scal...
VectorBuilder< true, double, T_shape, T_scale >::type pareto_rng(const T_scale &y_min, const T_shape &alpha, RNG &rng)
Return a Pareto random variate for the given shape and scale parameters using the specified random nu...
void check_positive_finite(const char *function, const char *name, const T_y &y)
Check if y is positive and finite.
fvar< T > exp(const fvar< T > &x)
size_t max_size(const T1 &x1, const T2 &x2)
VectorBuilder allocates type T1 values to be used as intermediate values.
void check_consistent_sizes(const char *function, const char *name1, const T1 &x1, const char *name2, const T2 &x2)
Check if the dimension of x1 is consistent with x2.