Flexible Power-Normal Models with Applications

The main object of this paper is to propose a new asymmetric model more flexible than the generalized Gaussian model. The probability density function of the new model can assume bimodal or unimodal shapes, and one of the parameters controls the skewness of the model. Three simulation studies are re...

Full description

Bibliographic Details
Main Authors: Guillermo Martínez-Flórez, Diego I. Gallardo, Osvaldo Venegas, Heleno Bolfarine, Héctor W. Gómez
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/24/3183
_version_ 1797502635208605696
author Guillermo Martínez-Flórez
Diego I. Gallardo
Osvaldo Venegas
Heleno Bolfarine
Héctor W. Gómez
author_facet Guillermo Martínez-Flórez
Diego I. Gallardo
Osvaldo Venegas
Heleno Bolfarine
Héctor W. Gómez
author_sort Guillermo Martínez-Flórez
collection DOAJ
description The main object of this paper is to propose a new asymmetric model more flexible than the generalized Gaussian model. The probability density function of the new model can assume bimodal or unimodal shapes, and one of the parameters controls the skewness of the model. Three simulation studies are reported and two real data applications illustrate the flexibility of the model compared with traditional proposals in the literature.
first_indexed 2024-03-10T03:37:55Z
format Article
id doaj.art-3d5034773c7347a28fa14d1fba5355d7
institution Directory Open Access Journal
issn 2227-7390
language English
last_indexed 2024-03-10T03:37:55Z
publishDate 2021-12-01
publisher MDPI AG
record_format Article
series Mathematics
spelling doaj.art-3d5034773c7347a28fa14d1fba5355d72023-11-23T09:25:23ZengMDPI AGMathematics2227-73902021-12-01924318310.3390/math9243183Flexible Power-Normal Models with ApplicationsGuillermo Martínez-Flórez0Diego I. Gallardo1Osvaldo Venegas2Heleno Bolfarine3Héctor W. Gómez4Departamento de Matemáticas y Estadística, Facultad de Ciencias, Universidad de Córdoba, Córdoba 2300, ColombiaDepartamento de Matemática, Facultad de Ingeniería, Universidad de Atacama, Copiapó 1530000, ChileDepartamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4780000, ChileDepartamento de Estatística, IME, Universidade de São Paulo, São Paulo 05508-090, BrazilDepartamento de Matemáticas, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta 1240000, ChileThe main object of this paper is to propose a new asymmetric model more flexible than the generalized Gaussian model. The probability density function of the new model can assume bimodal or unimodal shapes, and one of the parameters controls the skewness of the model. Three simulation studies are reported and two real data applications illustrate the flexibility of the model compared with traditional proposals in the literature.https://www.mdpi.com/2227-7390/9/24/3183power normal distributionbimodal asymmetric distributionmomentsmaximum likelihood estimatorsfisher information matrix
spellingShingle Guillermo Martínez-Flórez
Diego I. Gallardo
Osvaldo Venegas
Heleno Bolfarine
Héctor W. Gómez
Flexible Power-Normal Models with Applications
Mathematics
power normal distribution
bimodal asymmetric distribution
moments
maximum likelihood estimators
fisher information matrix
title Flexible Power-Normal Models with Applications
title_full Flexible Power-Normal Models with Applications
title_fullStr Flexible Power-Normal Models with Applications
title_full_unstemmed Flexible Power-Normal Models with Applications
title_short Flexible Power-Normal Models with Applications
title_sort flexible power normal models with applications
topic power normal distribution
bimodal asymmetric distribution
moments
maximum likelihood estimators
fisher information matrix
url https://www.mdpi.com/2227-7390/9/24/3183
work_keys_str_mv AT guillermomartinezflorez flexiblepowernormalmodelswithapplications
AT diegoigallardo flexiblepowernormalmodelswithapplications
AT osvaldovenegas flexiblepowernormalmodelswithapplications
AT helenobolfarine flexiblepowernormalmodelswithapplications
AT hectorwgomez flexiblepowernormalmodelswithapplications