auxmat

Returns an auxiliary matrix needed for computing the variance-covariance matrix of a CUBE model with covariates.

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

auxmat function

<dl><dt>m</dt>
<dd>Number of ordinal categories</dd>
<dt>vettcsi</dt>
<dd>Vector of the feeling parameters of the Beta-Binomial distribution, with length equal to the number of observations</dd>
<dt>vettphi</dt>
<dd>Vector of the overdispersion parameters of the Beta-Binomial distribution, with length equal to the number of observations</dd>
<dt>a</dt>
<dd>Real number</dd>
<dt>b</dt>
<dd>Real number</dd>
<dt>c</dt>
<dd>Real number</dd>
<dt>d</dt>
<dd>Real number</dd>
<dt>e</dt>
<dd>Real number</dd></dl>

Arguments

Auxiliary matrix — auxmat

<dl>

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


<dt>vettcsi</dt>
<dd>Vector of the feeling parameters of the Beta-Binomial distribution, with length equal to the number of observations</dd>


<dt>vettphi</dt>
<dd>Vector of the overdispersion parameters of the Beta-Binomial distribution, with length equal to the number of observations</dd>


<dt>a</dt>
<dd>Real number</dd>


<dt>b</dt>
<dd>Real number</dd>


<dt>c</dt>
<dd>Real number</dd>


<dt>d</dt>
<dd>Real number</dd>


<dt>e</dt>
<dd>Real number</dd>

</dl>

auxmat: Auxiliary matrix

Description

Usage

Arguments

References