Zero-Inflated Poisson Model with Group Data

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Abstract:

The Zero-inflated Poisson model has been widely used in many fields for count data with excessive zeroes. In fact, group data are often collected for many count data, such as cigarette consumption. In order to solve the problem, Zero-inflated Poisson model with group data is investigated in this paper. Parameter estimation is given by the maximum likelihood estimate, model selection is discussed by the Chi-square test, and one real example is given for application in the end.

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627-631

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September 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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