A goodness-of-fit test for the multivariate Poisson distribution

Bivariate count data arise in several different disciplines and the bivariate Poisson distribution is commonly used to model them. This paper proposes and studies a computationally convenient goodness-of-fit test for this distribution, which is based on an empirical counterpart of a system ofequatio...

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Bibliographic Details
Authors: Novoa-Muñoz, Francisco, Jiménez-Gamero, María Dolores|||0000-0002-8823-3292
Format: article
Publication Date:2016
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:158309
Online Access:https://ddd.uab.cat/record/158309
Access Level:Open access
Keyword:Bivariate poisson distribution
Goodness-of-fit
Empirical probability generating function
Parametric bootstrap
Weighted bootstrap
Multivariate poisson distribution
Description
Summary:Bivariate count data arise in several different disciplines and the bivariate Poisson distribution is commonly used to model them. This paper proposes and studies a computationally convenient goodness-of-fit test for this distribution, which is based on an empirical counterpart of a system ofequations. The test is consistent against fixed alternatives. The null distribution of the test can be consistently approximated by a parametric bootstrap and by a weighted bootstrap. The goodness of these bootstrap estimators and the power for finite sample sizes are numerically studied. It is shown that the proposed test can be naturally extended to the multivariate Poisson distribution.