wiener_lpdf() [3/4]

template<bool propto, typename T_y , typename T_alpha , typename T_tau , typename T_beta , typename T_delta >

return_type_t< T_y, T_alpha, T_tau, T_beta, T_delta > stan::math::wiener_lpdf	(	const T_y &	y,
		const T_alpha &	alpha,
		const T_tau &	tau,
		const T_beta &	beta,
		const T_delta &	delta
	)

The log of the first passage time density function for a (Wiener) drift diffusion model for the given \(y\), boundary separation \(\alpha\), nondecision time \(\tau\), relative bias \(\beta\), and drift rate \(\delta\).

\(\alpha\) and \(\tau\) must be greater than 0, and \(\beta\) must be between 0 and 1. \(y\) should contain reaction times in seconds (strictly positive) with upper-boundary responses.

Template Parameters

T_y	type of scalar
T_alpha	type of alpha parameter
T_tau	type of tau parameter
T_beta	type of beta parameter
T_delta	type of delta parameter

Parameters

y	A scalar variate.
alpha	The boundary separation.
tau	The nondecision time.
beta	The relative bias.
delta	The drift rate.

Returns

The log of the Wiener first passage time density of the specified arguments.

Definition at line 77 of file wiener_lpdf.hpp.