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On a class of bivariate mixed Sarmanov distributions

机译:关于一类双方混合沙漠的分布

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Summary Multivariate distributions are more and more used to model the dependence encountered in many fields. However, classical multivariate distributions can be restrictive by their nature, while Sarmanov's multivariate distribution, by joining different marginals in a flexible and tractable dependence structure, often provides a valuable alternative. In this paper, we introduce some bivariate mixed Sarmanov distributions with the purpose to extend the class of bivariate Sarmanov distributions and to obtain new dependency structures. Special attention is paid to the bivariate mixed Sarmanov distribution with Poisson marginals and, in particular, to the resulting bivariate Sarmanov distributions with negative binomial and with Poisson‐inverse Gaussian marginals; these particular types of mixed distributions have possible applications in, for example modelling bivariate count data. The extension to higher dimensions is also discussed. Moreover, concerning the dependency structure, we also present some correlation formulas.
机译:摘要多变量分布越来越多地用于模拟许多领域遇到的依赖。然而,经典多变量分布可能是其性质的限制性,而马尔塔诺夫的多变量分布通过在柔性和易依赖性结构中加入不同的边缘,通常提供有价值的替代品。在本文中,我们介绍了一些双方混合的沙漠多种分布,目的是扩展一类Bifariate Sarmanov分布并获得新的依赖结构。特别关注与泊松边缘的双人混合的沙漠分布,特别是与负二项式和泊松逆高斯边缘的生物疟原虫分布。这些特定类型的混合分布具有可能的应用,例如建模一致计数数据。还讨论了更高维度的延伸。此外,关于依赖结构,我们还存在一些相关公式。

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