Numerical tests for multivariate normality
Besides the graphical tests using QQ-plot, the MVN library has a range of numerical tests for checking multivariate normality. Along with the significance tests, these tests provide an inferential statement about whether the data are multivariate normal.
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Multivariate Probability Distributions in R
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Use the
mvn()function with argumentmvnTest = "mardia"to perform Mardia's test of multivariate normality on themultnorm.sampledataset.Use the
mvn()function with argumentmvnTest = "hz"to perform Henze-Zirkler's test of multivariate normality on the numeric variables,Alcohol,Malic,Ash,Alcalinityof thewinedataset.
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# Mardia's test
# Henze-Zirkler's test