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A Score-type Test for Heterogeneity in Zero-inflated Models in a Stratified Population

We propose a score-type statistic to evaluate heterogeneity in zero-inflated models for count data in a stratified population, where heterogeneity is defined as instances in which the zero counts are generated from two sources. Evaluating heterogeneity in this class of models has attracted considera...

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Autors principals: Cao, Guanqun, Hsu, Wei-Wen, Todem, David
Format: Artigo
Idioma:Inglês
Publicat: 2014
Matèries:
Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC4013243/
https://ncbi.nlm.nih.gov/pubmed/24488881
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1002/sim.6092
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