1 #ifndef STAN_MATH_PRIM_SCAL_PROB_DOUBLE_EXPONENTIAL_RNG_HPP 2 #define STAN_MATH_PRIM_SCAL_PROB_DOUBLE_EXPONENTIAL_RNG_HPP 9 #include <boost/random/uniform_real_distribution.hpp> 10 #include <boost/random/variate_generator.hpp> 33 template <
typename T_loc,
typename T_scale,
class RNG>
36 using boost::random::uniform_real_distribution;
37 using boost::variate_generator;
38 static const char*
function =
"double_exponential_rng";
50 variate_generator<RNG&, uniform_real_distribution<> > z_rng(
51 rng, uniform_real_distribution<>(-1.0, 1.0));
52 for (
size_t n = 0; n < N; ++n) {
fvar< T > abs(const fvar< T > &x)
void check_finite(const char *function, const char *name, const T_y &y)
Check if y is finite.
fvar< T > log(const fvar< T > &x)
scalar_seq_view provides a uniform sequence-like wrapper around either a scalar or a sequence of scal...
void check_positive_finite(const char *function, const char *name, const T_y &y)
Check if y is positive and finite.
VectorBuilder< true, double, T_loc, T_scale >::type double_exponential_rng(const T_loc &mu, const T_scale &sigma, RNG &rng)
Return a double exponential random variate with the given location and scale using the specified rand...
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.