Results 21 to 30 of about 6,790,612 (291)

An Extension of the Truncated-Exponential Skew- Normal Distribution

Mathematics, 2021
In the paper, we present an extension of the truncated-exponential skew-normal (TESN) distribution. This distribution is defined as the quotient of two independent random variables whose distributions are the TESN distribution and the beta distribution ...
Pilar A. Rivera, Diego I. Gallardo, Osvaldo Venegas, Marcelo Bourguignon, Héctor W. Gómez   +4 more
doaj   +1 more source

The multivariate skew-normal distribution [PDF]

Biometrika, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
AZZALINI, ADELCHI, DALLA VALLE, ALESSANDRA   +1 more
openaire   +3 more sources

Geometric skew-Cauchy distribution as an alternative to the skew-normal and geometric skew-normal distributions [PDF]

, 2021
Mini Dissertation (MSc (Advanced Data Analytics))--University of Pretoria, 2021.The skew-normal distribution was popularised by Azzalini [4] to model skewed data. However, the skew-normal distribution is always unimodal. Kundu [24] recently presented the

core   +1 more source

Some Statistical Aspects of the Truncated Multivariate Skew-t Distribution

Mathematics, 2022
The multivariate skew-t distribution plays an important role in statistics since it combines skewness with heavy tails, a very common feature in real-world data.
Raúl Alejandro Morán-Vásquez, Edwin Zarrazola, Daya K. Nagar   +2 more
doaj   +1 more source

Inference and Local Influence Assessment in a Multifactor Skew-Normal Linear Mixed Model

Mathematics, 2022
This work considers a multifactor linear mixed model under heteroscedasticity in random-effect factors and the skew-normal errors for modeling the correlated datasets.
Zeinolabedin Najafi, Karim Zare, Mohammad Reza Mahmoudi, Soheil Shokri, Amir Mosavi   +4 more
doaj   +1 more source

An Alternative to the Log-Skew-Normal Distribution: Properties, Inference, and an Application to Air Pollutant Concentrations

Mathematics, 2022
In this study, we consider an alternative to the log-skew-normal distribution. It is called the modified log-skew-normal distribution and introduces greater flexibility in the skewness and kurtosis parameters.
Jaime Arrué, Reinaldo Boris Arellano-Valle, Osvaldo Venegas, Heleno Bolfarine, Héctor W. Gómez   +4 more
doaj   +1 more source

Quantile Estimation Using the Log-Skew-Normal Linear Regression Model with Application to Children’s Weight Data

Mathematics, 2023
In this article, we establish properties that relate quantiles of the log-skew-normal distribution to its parameters, allowing us to investigate the relationship between quantiles of a positive skewed response variable and a set of explanatory variables ...
Raúl Alejandro Morán-Vásquez, Anlly Daniela Giraldo-Melo, Mauricio A. Mazo-Lopera   +2 more
doaj   +1 more source

Inference for grouped data with a truncated skew-Laplace distribution [PDF]

, 2010
The skew-Laplace distribution has been used for modelling particle size with point observations. In reality, the observations are truncated and grouped (rounded).
Rubio, Francisco J., Steel, Mark F. J.
core   +1 more source

Alpha-skew-normal distribution [PDF]

Proyecciones (Antofagasta), 2011
The main object of this paper is to introduce an alternative form of generate asymmetry in the normal distribution that allows to fit unimodal and bimodal data sets. Basic properties of this new distribution, such as stochastic representation, moments, maximum likelihood and the singularity of the Fisher information matrix are studied.
openaire   +2 more sources

A Conversation with Adelchi Azzalini and Narayanaswamy Balakrishnan

Statistica, 2020
On November 6, 2017, the Department of Statistical Sciences of the University of Bologna organized a workshop to celebrate the life and works of Antonella Capitanio, one year after her premature death.
Angela Montanari
doaj   +1 more source