Search
Now showing items 1-10 of 47
On the unification of families of skew-normal distributions
(BLACKWELL PUBLISHING, 2006)
The distribution theory literature connected to the multivariate skew-normal distribution has grown rapidly in recent years, and a number of extensions and alternative formulations have been put forward. Presently there ...
Bayesian sensitivity analysis and model comparison for skew elliptical models
(ELSEVIER SCIENCE BV, 2006)
In this work we approach the problem of model comparison between skew families. For the univariate skew model, we measure the sensitivity of the skewness parameter using the L-1 distance between symmetric and asymmetric ...
Definition and probabilistic properties of skew-distributions
(ELSEVIER, 2002)
The univariate, and multivariate skew-normal distributions have a number of intriguing properties. It is shown here that these hold for a general class of distributions, defined in terms of independence conditions on signs ...
A unified view on skewed distributions arising from selections
(WILEY, 2006)
Parametric families of multivariate nonnormal distributions have received considerable attention in the past few decades. The authors propose a new definition of a selection distribution that encompasses many existing ...
Bayesian inference for skew-normal linear mixed models
(TAYLOR & FRANCIS LTD, 2007)
Linear mixed models (LMM) are frequently used to analyze repeated measures data, because they are more flexible to modelling the correlation within-subject, often present in this type of data. The most popular LMM for ...
LIKELIHOOD BASED INFERENCE FOR SKEW-NORMAL INDEPENDENT LINEAR MIXED MODELS
(STATISTICA SINICA, 2010)
Linear mixed models with normally distributed response are routinely used in longitudinal data. However, the accuracy of the assumed normal distribution is crucial for valid inference of the parameters We present a new ...
A new class of skew-normal distributions
(TAYLOR & FRANCIS INC, 2004)
We introduce a new family of asymmetric normal distributions that contains Azzalini's skew-normal (SN) distribution as a special case. We study the main properties of this new family, showing in particular that it may be ...
Shape mixtures of multivariate skew-normal distributions
(ELSEVIER INC, 2009)
Classes of shape mixtures of independent and dependent multivariate skew-normal distributions are considered and some of their main properties are studied. If interpreted from a Bayesian point of view, the results obtained ...
The centred parametrization for the multivariate skew-normal distribution
(ELSEVIER INC, 2008)
For statistical inference connected to the scalar skew-normal distribution, it is known that the so-called centred parametrization provides a more convenient parametrization than the one commonly employed for writing the ...
Bayesian Inference for Shape Mixtures of Skewed Distributions, with Application to Regression Analysis
(INT SOC BAYESIAN ANALYSIS, 2008)
We introduce a class of shape mixtures of skewed distributions and study some of its main properties. We discuss a Bayesian interpretation and some invariance results of the proposed class. We develop a Bayesian analysis ...