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Journal of Multivariate Analysis
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Journal of Multivariate Analysis
Article . 2001
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A General Class of Multivariate Skew-Elliptical Distributions

A general class of multivariate skew-elliptical distributions
Authors: Branco, Márcia D.; Dey, Dipak K.;

A General Class of Multivariate Skew-Elliptical Distributions

Abstract

Let \({\mathbf X}= (X_1,\dots, X_k)^T\) be a random vector elliptically distributed with location vector \(\mu\in \mathbb{R}^k\) and \(k\times k\) (positive definite) dispersion matrix \(\Sigma\), and assume that the vector \((X_0, X_1,\dots, X_k)^T\) is also elliptically distributed with location vector \((0,\mu)\) and dispersion matrix \(\left( \begin{smallmatrix} 1 & \delta^T \\ \delta & \Sigma \end{smallmatrix} \right)\) for some \(\delta= (\delta_1,\dots, \delta_k)^T\). Then the random vector \[ {\mathbf Y}= \begin{cases} {\mathbf X}- \mu\quad\text{if} X_0>0 \\ -{\mathbf X}+\mu\quad\text{if} X_0 \leq 0\end{cases} \] is said to have a skew-elliptical distribution. The authors give several examples of skew-elliptical distributions, and compute moment generating functions, mean vectors and covariance matrices.

Keywords

Statistics and Probability, Numerical Analysis, Pearson type II, skewness, exponential power family, mixture of normals, Probability distributions: general theory, elliptical distributions, Statistics, Probability and Uncertainty, Multivariate distribution of statistics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
559
Top 0.1%
Top 0.1%
Top 10%
hybrid