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Original Articles

A New Graphical Test for Multivariate Normality

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Pages 5-48 | Published online: 14 Aug 2013
 

SYNOPTIC ABSTRACT

A new methodology for assessing distributional assumptions of multivariate data, with graphical applications, is presented. The underlying procedure is based on transforming the multivariate sample into a set of uncorrelated samples and representing the order statistics of each transformed sample by linked vectors in a two dimensional space. The proposed method is described and its properties discussed. The multivariate normality tests are reviewed and a new classification scheme for them is proposed. The new test is then compared with a selection of the “best” competing ones under an exhaustive Monte Carlo study. A selection of “best” tests for several non normal alternatives, with advantages and disadvantages, is given. Graphical aspects of the new procedure are discussed.

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