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Journal of Statistical Theory and Practice

, Volume 6, Issue 2, pp 334–343 | Cite as

Zero-Inflated Power Series Joint Model to Analyze Count Data with Missing Responses

  • E. Bahrami Samani
  • M. Ganjali
  • Y. Amirian
Article

Abstract

A zero-inflated power series (ZIPS) joint model for count data with excess zeros and missing responses is presented. A full likelihood-based approach is implemented to obtain maximum likelihood estimates of the model parameters. The purpose of this article is to propose the mixed SEM and EM algorithms (M-SEM-EM algorithm) for parameter estimation in the likelihood function. To illustrate the utility of the proposed model, a large data set excerpted from the British Household Panel Survey (BHPS) is analyzed.

AMS Subject Classification

62P99 

Key-words

EM algorithm; Excess zeros Generalized linear mixed model Missing Responses Stochastic EM algorithm Zero-inflated model 

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Copyright information

© Grace Scientific Publishing 2011

Authors and Affiliations

  1. 1.Department of Statistics, School of Mathematical SciencesShahid Beheshti UniversityEvin, TehranIran

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