Regression Model for Positive Data Based on the Slashed Half-Normal Distribution
Yolanda M. Gómez, Diego Ignacio Gallardo, Mário de Castro · DOAJ (DOAJ: Directory of Open Access Journals) · 2022
In this paper, we discuss several aspects about the slashed half-normal distribution. We reparameterize the model based on the mean and we perform comparisons with well-known regression models for positive data. Maximum likelihood estimation of the parameters is carried out through the expectation-maximization algorithm. Some properties of the estimators and two kinds of residuals are assessed in a simulation study. Two real datasets illustrated the proposed model as well as other three models for the sake of comparison.