UpPhetpartial: M-step for the support parameters of a Bayesian mixture of...

In cmollica/PLMIX: Bayesian Analysis of Finite Mixture of Plackett-Luce Models

Description

The function UpPhetpartial updates the support parameter estimates in the EM algorithm for MAP estimation of a Bayesian mixture of Plackett-Luce models.

Usage

UpPhetpartial(p, ref_order, pi_inv, u_bin, z_hat, shape0, rate0, n_rank)

Arguments

p	Numeric GxK matrix of component-specific support parameters.
ref_order	Numeric GxK matrix of component-specific reference orders.
pi_inv	Numeric NxK data matrix of partial orderings.
u_bin	Binary NxK matrix indicating whether sample unit s ranked item i.
z_hat	Numeric NxG matrix of posterior component membership probabilities.
shape0	Numeric GxK matrix of shape hyperparameters.
rate0	Numeric vector of G rate hyperparameters.
n_rank	Numeric vector of length N with the number of items ranked by each sample unit.

Value

Numeric GxK matrix of estimated component-specific support parameters.

cmollica/PLMIX documentation built on Dec. 31, 2020, 10:04 p.m.