wiener5_grad_a()

template<bool WrtLog = false, typename T_y , typename T_a , typename T_w , typename T_v , typename T_sv , typename T_err >

auto stan::math::internal::wiener5_grad_a ( const T_y &  y, const T_a &  a, const T_v &  v_value, const T_w &  w_value, const T_sv &  sv, T_err &&  err = log(1e-12)  )

inlinenoexcept

Calculate the derivative of the wiener5 density w.r.t.

'a'

Template Parameters

WrtLog	Whether to return the derivative w.r.t. the natural (true) or log-scale (false) density
T_y	type of scalar variable
T_a	type of boundary separation
T_v	type of drift rate
T_w	type of relative starting point
T_sv	type of inter-trial variability in v
T_err	type of log error

Parameters

y	A scalar variable; the reaction time in seconds
a	The boundary separation
v_value	The drift rate
w_value	The relative starting point
sv	The inter-trial variability of the drift rate
err	The log error tolerance

Returns

Gradient w.r.t. a

Definition at line 405 of file wiener5_lpdf.hpp.