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阿尔法-幂律帕累托分布:性质与应用。

Alpha-Power Pareto distribution: Its properties and applications.

机构信息

Department of Statistics, Islamia College, Peshawar, Khyber Pakhtunkhwa, Pakistan.

Department of Statistics, University of Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan.

出版信息

PLoS One. 2019 Jun 12;14(6):e0218027. doi: 10.1371/journal.pone.0218027. eCollection 2019.

Abstract

In Statistical theory, inclusion of an additional parameter to standard distributions is a usual practice. In this study, a new distribution referred to as Alpha-Power Pareto distribution is introduced by including an extra parameter. Several properties of the proposed distribution, including moment generating function, mode, quantiles, entropies, mean residual life function, stochastic orders and order statistics are obtained. Parameters of the proposed distribution have been estimated using maximum likelihood estimation technique. Two real datasets have been considered to examine the usefulness of the proposed distribution. It has been observed that the proposed distribution outperforms different variants of Pareto distribution on the basis of model selection criteria.

摘要

在统计理论中,向标准分布中纳入额外参数是一种常见做法。本研究通过引入一个额外参数,引入了一种新的分布,称为α-幂帕累托分布。获得了提议分布的几个性质,包括矩生成函数、模式、分位数、熵、平均剩余寿命函数、随机序和顺序统计量。使用最大似然估计技术估计了提议分布的参数。考虑了两个真实数据集来检验提议分布的有用性。根据模型选择标准,观察到提议分布在不同的帕累托分布变体上表现更好。

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