کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
415301 681197 2008 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Linear mixed models with skew-elliptical distributions: A Bayesian approach
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Linear mixed models with skew-elliptical distributions: A Bayesian approach
چکیده انگلیسی

Normality of random effects and error terms is a routine assumption for linear mixed models. However, such an assumption may be unrealistic, obscuring important features of within- and among-unit variation. A simple and robust Bayesian parametric approach that relaxes this assumption by using a multivariate skew-elliptical distribution, which includes the Skew-tt, Skew-normal, tt-Student, and Normal distributions as special cases and provides flexibility in capturing a broad range of non-normal and asymmetric behavior is presented. An appropriate posterior simulation scheme is developed and the methods are illustrated with an application to a longitudinal data example.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Statistics & Data Analysis - Volume 52, Issue 11, 15 July 2008, Pages 5033–5045
نویسندگان
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