beta_neg_binomial_lpmf() [1/2]

template<bool propto, typename T_n , typename T_r , typename T_alpha , typename T_beta , require_all_not_nonscalar_prim_or_rev_kernel_expression_t< T_n, T_r, T_alpha, T_beta > * = nullptr>

return_type_t< T_r, T_alpha, T_beta > stan::math::beta_neg_binomial_lpmf ( const T_n &  n, const T_r &  r, const T_alpha &  alpha, const T_beta &  beta  )

inline

Returns the log PMF of the Beta Negative Binomial distribution with given number of successes, prior success, and prior failure parameters.

Given containers of matching sizes, returns the log sum of probabilities.

Template Parameters

T_n	type of failure parameter
T_r	type of number of successes parameter
T_alpha	type of prior success parameter
T_beta	type of prior failure parameter

Parameters

n	failure parameter
r	Number of successes parameter
alpha	prior success parameter
beta	prior failure parameter

Returns

log probability or log sum of probabilities

Exceptions

std::domain_error	if r, alpha, or beta fails to be positive
std::invalid_argument	if container sizes mismatch

Definition at line 42 of file beta_neg_binomial_lpmf.hpp.