psi: Normalizing constant function of a Mallows distribution, psi

In rankrate: Joint Statistical Models for Preference Learning with Rankings and Ratings

Normalizing constant function of a Mallows distribution, psi

Description

This function calculates the normalizing constant of a Mallows distribution under the Kendall distance

Usage

psi(theta, J, R, log = FALSE)

Arguments

theta	A numeric entry specifying the Mallows scale parameter.
J	A numeric entry or vector of positive integers indicating total number of objects each judge has access to. If length(J)>1, R must be of same length or a single value.
R	A numeric entry or vector of positive integers indicating the length of the ranking provided by each judge. If length(R)>1, J must be of same length or a single value.
log	A boolean indicating if log(psi) should be returned.

Value

A numeric value or vector representing normalizing constant of a Mallows distribution.

Examples

psi(theta=1,J=10,R=8)
psi(theta=2,J=c(4,4,3),R=c(2,2,1),log=TRUE)

rankrate documentation built on April 12, 2025, 1:46 a.m.