نتایج جستجو برای: bivariate poisson regression model
تعداد نتایج: 2352265 فیلتر نتایج به سال:
This paper develops a censored generalized Poisson regression model that can be used to predict a response variable that is a2ected by one or more explanatory variables. The censored generalized Poisson regression model is suitable for modeling count data that exhibit either overor under-dispersion. The regression parameters are estimated by the method of maximum likelihood and approximate test...
The applied econometrics of bivariate count data predominantly focus on a bivariate Poisson density described by Johnson and Kotz. The main limitation is that this bivariate distribution excludes zero and negative correlation. This paper introduces a new model which allows for a more exible correlation structure. To this end the joint density is decomposed by means of the multiplication rule in...
This study presents multi-level analyses for single- and multi-vehicle crashes on a mountainous freeway. Data from a 15-mile mountainous freeway section on I-70 were investigated. Both aggregate and disaggregate models for the two crash conditions were developed. Five years of crash data were used in the aggregate investigation, while the disaggregate models utilized one year of crash data alon...
Background and purpose: Due to the increasing information about illnesses and deaths, classified map is of appropriate methods for analyzing this type of data. Standardized infection rates are commonly used in disease mapping but had many defects. This study aimed to compare the Poisson regression models and empirical Bayes models to prepare geographical map of tuberculosis incidence in Mazanda...
background: poverty and low socioeconomic status are the most important reasons of increasing the global burden of tuberculosis, not only in developing countries but also in developed countries for particular groups. the purpose of this study was to assess the association between socioeconomic factors and the number of tuberculosis patients using quantile regression for count data. methods: t...
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