The Cos-Poisson model with a novel count regression analysis

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Hacettepe Journal of Mathematics and Statistics
Volume:50 Issue:2
The Cos-Poisson model with a novel count regression analysis

The Cos-Poisson model with a novel count regression analysis

Authors : Hassan BAKOUCH, Christophe CHESNEAU, Kadir KARAKAYA, Coşkun KUŞ

Pages : 559-578

Doi:10.15672/hujms.740872

View : 68 | Download : 17

Publication Date : 2021-04-11

Article Type : Research Paper

Abstract :In this paper, we propose a new generalization of the Poisson distribution by using the concept of the weighted distribution; a trigonometric weight with the cosine function is used. We derive some distributional properties of the new distribution, such as the cumulative distribution function, moment generating function, factorial moments, and index of dispersion. Then, the related model is considered for modeling purposes, with estimation of the model parameters performed via several methods. Zero-inflated count regression analysis is introduced by using the new distribution. Finally, we provide two applications of the obtained results on practical data sets.
Keywords : confidence interval, count data, count regression, index of dispersion, zero inflated data

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