update_U: Update utility vector

In RprobitB: Bayesian Probit Choice Modeling

Update utility vector

Description

Update utility vector

Usage

update_U(U, y, sys, Sigma_inv)

Arguments

U	[numeric(J - 1)] The current utility vector.
y	[integer(1)] The index of the chosen alternative, from 1 to J.
sys	[numeric(J - 1)] The systematic utility.
Sigma_inv	[matrix(J - 1, J - 1)] The inverted error covariance matrix.

Value

An update for (a single) U.

Examples

U <- sys <- c(0, 0, 0)
Sigma_inv <- diag(3)
lapply(1:4, function(y) update_U(U, y, sys, Sigma_inv))

RprobitB documentation built on Aug. 26, 2025, 1:08 a.m.