A new statistical distribution via the Phi-4 equation with its wide-ranging applications.

Alharbi, Yousef F.; Abd El-Bar, Ahmed M. T.; Abdelrahman, Mahmoud A. E.; Gemeay, Ahmed M.

This paper presents a new framework based on nonlinear partial differential equations and statistics. For the nonlinear Phi-4 equation, the probability density function of the hyperbolic secant (HS) distribution has been obtained. Our model's density has various shapes, including left-skewed, symmetric, and right-skewed. Eight distinct estimation approaches have been employed to estimate the parameters of our model. Additionally, the behavior of the HS model parameters was investigated using randomly generated data sets using these estimation techniques. Furthermore, we illustrate the applicability of the HS distribution for modeling real data by applying our results to real data. As a result, it is expected that our proposal will be of significant assistance to the community investigating new distributions based on hyperbolic functions and their applications to real-world data sets.

NONLINEAR differential equations; DISTRIBUTION (Probability theory); PROBABILITY density function; PARTIAL differential equations; HYPERBOLIC functions

PLoS ONE, 2024, Vol 19, Issue 11, p1

1932-6203

Academic Journal

10.1371/journal.pone.0312458