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Proyecciones (Antofagasta)

Print version ISSN 0716-0917

Proyecciones (Antofagasta) vol.38 no.3 Antofagasta Aug. 2019 


A transmuted version of the generalized half-normal distribution

Hugo S. Salinas1 

Yuri A. Iriarte2 

Juan M. Astorga3 

1Universidad de Atacama, Departamento de Matemática, Facultad de Ingeniería, Copiapó, Chile. e-mail:

2Universidad de Antofagasta, Departamento de Matemáticas, Facultad de Ciencias Básicas, Antofagasta, Chile. e-mail:

3Universidad de Atacama, Departamento de Tecnologías de la Energía, Facultad Tecnológica, Copiapó, Chile. e-mail:


An extension of the generalized half-normal distribution, given by Cooray and Ananda [5], is proposed and studied. We use the quadratic rank transmutation map to generate a transmuted version of the generalized half-normal distribution. We study some probability properties, discuss maximum likelihood estimation and present real data application indicating that the new distribution can improve the generalized half-normal distribution in fitting real data.

Keywords: Generalized half-normal distribution; Half-normal distribution; Maximum likelihood; Quadratic rank transmutation map; Transmuted distribution

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Received: May 2018; Accepted: June 2019

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