LogitPathProb: Probability of path choices using logit model.

In MartinLHazelton/transportation: What the Package Does (One Line, Title Case)

Probability of path choices using logit model.

Description

This function calculates probabilities for selection of each path on the network based on set of path disutilities (costs). The function uses a logit random utility model.

Usage

LogitPathProb(u, ODpair, theta = 1)

Arguments

u	Vector of utlities on each path
ODpair	Vector indicating the OD pair serviced by each route.
theta	The logit parameter. Defaults to 1.

Value

Vector of route choice probabilities

Examples

A <- matrix(c(0,1,0,0,1,0,0,0,0,1,1,0,0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,1),ncol=4,byrow=T)
ODpair <- c(1,1,2,2)
Alpha <- rep(10,7)
Beta <- rep(2,7)
pow <- rep(4,7)
path_flow <- c(10,20,15,15)
x <- A%*%path_flow
u <- PathCost(x,A,Alpha,Beta)
LogitPathProb(u,ODpair,theta=0.7)

MartinLHazelton/transportation documentation built on Aug. 5, 2023, 10:28 a.m.