gecubpqs: Main function for CUB models with covariates for all the...

In CUB: A Class of Mixture Models for Ordinal Data

Main function for CUB models with covariates for all the components

Description

Function to estimate and validate a CUB model for given ordinal responses, with covariates for explaining all the components and the shelter effect.

Usage

gecubpqs(ordinal,Y,W,X,shelter,theta0,maxiter,toler)

Arguments

ordinal	Vector of ordinal responses
Y	Matrix of selected covariates for explaining the uncertainty component, not including intercept
W	Matrix of selected covariates for explaining the feeling component, not including intercept
X	Matrix of selected covariates for explaining the shelter effect, not including intercept
shelter	Category corresponding to the shelter choice
theta0	Starting values for parameters explaining the shelter effect
maxiter	Maximum number of iterations allowed for running the optimization algorithm
toler	Fixed error tolerance for final estimates

Value

An object of the class "CUB"

References

Piccolo D. and D'Elia A. (2008), A new approach for modelling consumers' preferences, Food Quality and Preference, 18, 247–259

Iannario M. and Piccolo D. (2010), A new statistical model for the analysis of customer satisfaction, #' Quality Technology and Quantity management, 7(2) 149–168
Iannario M. and Piccolo D. (2012), CUB models: Statistical methods and empirical evidence, in: Kenett R. S. and Salini S. (eds.), Modern Analysis of Customer Surveys: with applications using R, J. Wiley and Sons, Chichester, 231–258.

CUB documentation built on May 29, 2024, 5:23 a.m.