check_symmetry {performance} | R Documentation |
Uses Hotelling and Solomons test of symmetry by testing if the standardized
nonparametric skew (\frac{(Mean - Median)}{SD}) is different than 0.
This is an underlying assumption of Wilcoxon signed-rank test.
check_symmetry(x, ...)
x |
Model or numeric vector |
... |
Not used. |
V <- wilcox.test(mtcars$mpg) check_symmetry(V)