1 #ifndef STAN_MATH_PRIM_SCAL_PROB_CHI_SQUARE_RNG_HPP 2 #define STAN_MATH_PRIM_SCAL_PROB_CHI_SQUARE_RNG_HPP 8 #include <boost/random/chi_squared_distribution.hpp> 9 #include <boost/random/variate_generator.hpp> 27 template <
typename T_deg,
class RNG>
29 const T_deg& nu, RNG& rng) {
30 using boost::random::chi_squared_distribution;
31 using boost::variate_generator;
33 static const char*
function =
"chi_square_rng";
41 for (
size_t n = 0; n < N; ++n) {
42 variate_generator<RNG&, chi_squared_distribution<> >
chi_square_rng(
43 rng, chi_squared_distribution<>(nu_vec[n]));
scalar_seq_view provides a uniform sequence-like wrapper around either a scalar or a sequence of scal...
size_t length(const std::vector< T > &x)
Returns the length of the provided std::vector.
void check_positive_finite(const char *function, const char *name, const T_y &y)
Check if y is positive and finite.
VectorBuilder allocates type T1 values to be used as intermediate values.
VectorBuilder< true, double, T_deg >::type chi_square_rng(const T_deg &nu, RNG &rng)
Return a chi squared random variate with nu degrees of freedom using the specified random number gene...