arXiv subjects

J. Leão

Publications and source records attributed to J. Leão.

2 recordsLinked to original sources

arXiv2022

On Some Properties of the Beta Inverse Rayleigh Distribution

We study with some details a lifetime model of the class of beta generalized models, called the beta inverse Rayleigh distribution, which is a special case of the Beta Fréchet distribution. We provide a better foundation for some properties including quantile function, moments, mean deviations, Bonferroni and Lorenz curves, Rényi and Shannon entropies and order statistics. We fit the proposed model using maximum likelihood estimation to a real data set to illustrate its flexibility and potentiality.

math.ST↗

arXiv2020

Bayesian Measurement Error Models Using Finite Mixtures of Scale Mixtures of Skew-Normal Distributions

We present a proposal to deal with the non-normality issue in the context of regression models with measurement errors when both the response and the explanatory variable are observed with error. We extend the normal model by jointly modeling the unobserved covariate and the random errors by a finite mixture of scale mixture of skew-normal distributions. This approach allows us to model data with great flexibility, accommodating skewness, heavy tails, and multi-modality.

stat.ME↗