levene_test Calculates the Levene's test for homogeneity
of variance across groups, model coefficients, the
variance-covariance matrix and the degrees of freedom.
levene_test(y, x, formula, data)numeric (continuous) response variable.
categorical group variable.
A formula object to specify the model as normally used by glm. Use 'factor' to define the grouping x variable. Only one variable is allowed.
An objects of class milist, created by
df2milist, list2milist or mids2milist.
An object from which the following objects are extracted:
fstats F-test value, including numerator and
denominator degrees of freedom.
qhat model coefficients.
vcov variance-covariance matrix.
dfcom degrees of freedom obtained from df.residual.
The Levene's test centers on group means to calculate outcome residuals, the Brown-Forsythe test on the median.