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.
Questo esercizio fa parte del corso
Multivariate Probability Distributions in R
Istruzioni dell'esercizio
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.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Mardia's test
# Henze-Zirkler's test