check_sphericity: Check model for violation of sphericity

In performance: Assessment of Regression Models Performance

Check model for violation of sphericity

Description

Check model for violation of sphericity. For Bartlett's Test of Sphericity (used for correlation matrices and factor analyses), see check_sphericity_bartlett.

Usage

check_sphericity(x, ...)

Arguments

x	A model object.
...	Arguments passed to car::Anova.

Value

Invisibly returns the p-values of the test statistics. A p-value < 0.05 indicates a violation of sphericity.

Examples

data(Soils, package = "carData")
soils.mod <- lm(
  cbind(pH, N, Dens, P, Ca, Mg, K, Na, Conduc) ~ Block + Contour * Depth,
  data = Soils
)

check_sphericity(Manova(soils.mod))

performance documentation built on Nov. 2, 2023, 5:48 p.m.