The polar-generalized normal distribution: properties, Bayesian estimation and applications

Masoud Faridi () and Majid Jafari Khaledi ()
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Masoud Faridi: Tarbiat Modares University
Majid Jafari Khaledi: Tarbiat Modares University

Statistical Papers, 2022, vol. 63, issue 2, No 11, 603 pages

Abstract: Abstract This paper introduces an extension to the normal distribution through the polar method to capture bimodality and asymmetry, which are often observed characteristics of empirical data. The later two features are entirely controlled by a separate scalar parameter. Explicit expressions for the cumulative distribution function, the density function and the moments were derived. The stochastic representation of the distribution facilitates implementing Bayesian estimation via the Markov chain Monte Carlo methods. Some real-life data as well as simulated data are analyzed to illustrate the flexibility of the distribution for modeling asymmetric bimodality.

Keywords: Skewness; Bimodality; Polar method; Beta distribution; Bayesian estimation (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s00362-021-01245-0

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