loglikcushcov

Compute the log-likelihood function for a CUSH model
with covariates for the given ordinal responses.

internal

For ordinal rating data, estimate and test models within the family of CUB models and their extensions (where CUB stands for Combination of a discrete Uniform and a shifted Binomial distributions); Simulation routines, plotting facilities and fitting measures are also provided.

Rosaria Simone

A Class of Mixture Models for Ordinal Data

Maria Iannario

Domenico Piccolo

loglikcushcov function

<dl><dt>m</dt>
<dd>Number of ordinal categories</dd>
<dt>ordinal</dt>
<dd>Vector of ordinal responses</dd>
<dt>X</dt>
<dd>Matrix of selected covariates for explaining the shelter parameter</dd>
<dt>omega</dt>
<dd>Vector of parameters for explaining the shelter effect,
with length equal to NCOL(X)+1 to account for an intercept term (first entry of omega)</dd>
<dt>shelter</dt>
<dd>Category corresponding to the shelter choice</dd></dl>

Arguments

Log-likelihood function for a CUSH model with covariates — loglikcushcov

<dl>

<dt>m</dt>
<dd>Number of ordinal categories</dd>


<dt>ordinal</dt>
<dd>Vector of ordinal responses</dd>


<dt>X</dt>
<dd>Matrix of selected covariates for explaining the shelter parameter</dd>


<dt>omega</dt>
<dd>Vector of parameters for explaining the shelter effect,
with length equal to NCOL(X)+1 to account for an intercept term (first entry of omega)</dd>


<dt>shelter</dt>
<dd>Category corresponding to the shelter choice</dd>

</dl>

loglikcushcov: Log-likelihood function for a CUSH model with covariates

Description

Usage

Arguments