A Family of Truncated Positive Distributions

In this paper, a new family of continuous distributions with positive support is introduced. This family is generated by a truncation of the family of univariate symmetrical distributions. In this new family of distributions, general properties, such as moments, asymmetry and kurtosis coefficients,...

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Main Authors: Héctor J. Gómez, Karol I. Santoro, Inmaculada Barranco-Chamorro, Osvaldo Venegas, Diego I. Gallardo, Héctor W. Gómez
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/21/4431
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author Héctor J. Gómez
Karol I. Santoro
Inmaculada Barranco-Chamorro
Osvaldo Venegas
Diego I. Gallardo
Héctor W. Gómez
author_facet Héctor J. Gómez
Karol I. Santoro
Inmaculada Barranco-Chamorro
Osvaldo Venegas
Diego I. Gallardo
Héctor W. Gómez
author_sort Héctor J. Gómez
collection DOAJ
description In this paper, a new family of continuous distributions with positive support is introduced. This family is generated by a truncation of the family of univariate symmetrical distributions. In this new family of distributions, general properties, such as moments, asymmetry and kurtosis coefficients, are derived. Particular cases of interest based on the normal, logistic, Laplace and Cauchy models are discussed in depth. The estimation of parameters is carried out by applying moments and maximum likelihood methods. Also, a simulation study was conducted to illustrate the good performance of estimators. An application to the Survival Times (in days) of Guinea Pigs dataset is included, where the special cases of distributions in this family are fitted. The option which provides the best fit is ultimately chosen. An R package, called “tpn”, has been implemented, which includes the relevant cases of interest in this family.
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spelling doaj.art-ebf396cd20c049b688fae677905a0e1a2023-11-10T15:07:52ZengMDPI AGMathematics2227-73902023-10-011121443110.3390/math11214431A Family of Truncated Positive DistributionsHéctor J. Gómez0Karol I. Santoro1Inmaculada Barranco-Chamorro2Osvaldo Venegas3Diego I. Gallardo4Héctor W. Gómez5Departamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4780000, ChileDepartamento de Estadística y Ciencias de Datos, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta 1240000, ChileDepartamento de Estadística e Investigación Operativa, Facultad de Matemáticas, Universidad de Sevilla, 41012 Sevilla, SpainDepartamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4780000, ChileDepartamento de Estadística, Facultad de Ciencias, Universidad del Bío-Bío, Concepción 4081112, ChileDepartamento de Estadística y Ciencias de Datos, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta 1240000, ChileIn this paper, a new family of continuous distributions with positive support is introduced. This family is generated by a truncation of the family of univariate symmetrical distributions. In this new family of distributions, general properties, such as moments, asymmetry and kurtosis coefficients, are derived. Particular cases of interest based on the normal, logistic, Laplace and Cauchy models are discussed in depth. The estimation of parameters is carried out by applying moments and maximum likelihood methods. Also, a simulation study was conducted to illustrate the good performance of estimators. An application to the Survival Times (in days) of Guinea Pigs dataset is included, where the special cases of distributions in this family are fitted. The option which provides the best fit is ultimately chosen. An R package, called “tpn”, has been implemented, which includes the relevant cases of interest in this family.https://www.mdpi.com/2227-7390/11/21/4431positive truncationlikelihoodsymmetric distributionstpn package
spellingShingle Héctor J. Gómez
Karol I. Santoro
Inmaculada Barranco-Chamorro
Osvaldo Venegas
Diego I. Gallardo
Héctor W. Gómez
A Family of Truncated Positive Distributions
Mathematics
positive truncation
likelihood
symmetric distributions
tpn package
title A Family of Truncated Positive Distributions
title_full A Family of Truncated Positive Distributions
title_fullStr A Family of Truncated Positive Distributions
title_full_unstemmed A Family of Truncated Positive Distributions
title_short A Family of Truncated Positive Distributions
title_sort family of truncated positive distributions
topic positive truncation
likelihood
symmetric distributions
tpn package
url https://www.mdpi.com/2227-7390/11/21/4431
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