The gamma half-Cauchy distribution: properties and applications

摘要

A new distribution, namely, the G arama-Half-Cauchy distribution is proposed. Various properties of the Gamma-Half Cauchy distribution are studied in detail such as limiting behavior, moments, mean deviations and Shannon entropy. The model parameters are estimated by the method of maximum likelihood and the observed information matrix is obtained. Two data sets arc used to illustrate the applications of Gamma- Half-Cauchy distribution.