The generalized half-t distribution

BULUT Y. M. , Jamalizadeh A., Dogru F. Z. , ARSLAN O.

STATISTICS AND ITS INTERFACE, cilt.10, sa.4, ss.727-734, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Konu: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.4310/sii.2017.v10.n4.a14
  • Dergi Adı: STATISTICS AND ITS INTERFACE
  • Sayfa Sayıları: ss.727-734

Özet

In this paper, we introduce a new distribution as a scale mixture of the generalized half normal (GHN) distribution proposed by [3] and the generalized gamma (GG) distribution. Since the half-t (HT) distribution given in [10] is a special case of the new distribution, we call the new distribution as "generalized half-t (GHT)" distribution. We derive the probability density function (pdf) of the GHT distribution and study some of its properties. We give maximum likelihood (ML) estimators for its parameters based on the Expectation-Maximization (EM) algorithm. We provide a small simulation study to show the performances of the ML estimators for GHT distribution. Also, we give a real data example to illustrate the modeling performance of the proposed distribution over the GHN and HT distributions.