NormalityTests function

Normality tests

Normality tests foor the columns of a matrix and a grouping variable.

NormalityTests(X, groups = NULL, plot = FALSE, SortByGroups = FALSE)

Arguments

• X: A data frame or a matrix containing several numerical variables
• groups: A factor with the groups
• plot: If TRUE the qqnorm plots are shown
• SortByGroups: Should the results be sorted by groups?

Details

Normality tests foor the columns of a matrix and a grouping variable.

Returns

The normality tests and the plots

Author(s)

Jose Luis Vicente Villardon

Examples

data(wine)
NormalityTests(wine[,4:6], groups = wine$Origin, plot=TRUE)