Published

2024-07-01

The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data

La distribución gamma generalizada flexible con aplicaciones a los datos COVID-19

DOI:

https://doi.org/10.15446/rce.v47n2.112328

Keywords:

Acceptance-rejection, COVID-19, Flexible Weibull distribution, Regression model (en)
Aceptación-rechazo, COVID-19, Distribución Weibull flexible, Modelo de regresión (es)

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The article presents the flexible generalized gamma distribution, whose density function can be expressed as an infinite linear combination of generalized gamma densities. Some of its statistical properties are reported, and maximum likelihood estimation is also discussed. A regression model with two systematic components is constructed for censored data. Three applications to real COVID-19 data reveal that the new model provides adequate fit and outperforms some competing models.

El artículo presenta la distribución gamma generalizada flexible, cuya función de densidad puede expresarse como una combinación lineal infinita de densidades gamma generalizadas. Se describen algunas de sus propiedades estadísticas y se analiza la estimación por máxima verosimilitud. Se construye un modelo de regresión con dos componentes sistemáticos para datos censurados. Tres aplicaciones a datos reales de COVID-19 revelan que el nuevo modelo proporciona y supera a algunos modelos de la competencia.

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How to Cite

APA

Ferreira, A. A. and Cordeiro, G. M. (2024). The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data. Revista Colombiana de Estadística, 47(2), 453–473. https://doi.org/10.15446/rce.v47n2.112328

ACM

[1]
Ferreira, A.A. and Cordeiro, G.M. 2024. The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data. Revista Colombiana de Estadística. 47, 2 (Jul. 2024), 453–473. DOI:https://doi.org/10.15446/rce.v47n2.112328.

ACS

(1)
Ferreira, A. A.; Cordeiro, G. M. The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data. Rev. colomb. estad. 2024, 47, 453-473.

ABNT

FERREIRA, A. A.; CORDEIRO, G. M. The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data. Revista Colombiana de Estadística, [S. l.], v. 47, n. 2, p. 453–473, 2024. DOI: 10.15446/rce.v47n2.112328. Disponível em: https://revistas.unal.edu.co/index.php/estad/article/view/112328. Acesso em: 17 feb. 2025.

Chicago

Ferreira, Alexsandro A., and Gauss M. Cordeiro. 2024. “The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data”. Revista Colombiana De Estadística 47 (2):453-73. https://doi.org/10.15446/rce.v47n2.112328.

Harvard

Ferreira, A. A. and Cordeiro, G. M. (2024) “The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data”, Revista Colombiana de Estadística, 47(2), pp. 453–473. doi: 10.15446/rce.v47n2.112328.

IEEE

[1]
A. A. Ferreira and G. M. Cordeiro, “The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data”, Rev. colomb. estad., vol. 47, no. 2, pp. 453–473, Jul. 2024.

MLA

Ferreira, A. A., and G. M. Cordeiro. “The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data”. Revista Colombiana de Estadística, vol. 47, no. 2, July 2024, pp. 453-7, doi:10.15446/rce.v47n2.112328.

Turabian

Ferreira, Alexsandro A., and Gauss M. Cordeiro. “The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data”. Revista Colombiana de Estadística 47, no. 2 (July 12, 2024): 453–473. Accessed February 17, 2025. https://revistas.unal.edu.co/index.php/estad/article/view/112328.

Vancouver

1.
Ferreira AA, Cordeiro GM. The Flexible Generalized Gamma Distribution With Applications to COVID-19 Data. Rev. colomb. estad. [Internet]. 2024 Jul. 12 [cited 2025 Feb. 17];47(2):453-7. Available from: https://revistas.unal.edu.co/index.php/estad/article/view/112328

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