levene.test {s20x}R Documentation

Levene test for the ANOVA Assumption

Description

Perform a Levene test for equal group variances in both one-way and two-way ANOVA. A table with the results is displayed.

Usage

levene.test(formula, digit = 5)

Arguments

formula a symbolic description of the model to be fit: response ~ fac1 + fac2.
digit the number of decimal places to display.

Value

Df degrees of freedom.
Sum of Sq sum squares.
Mean Sq mean squares.
F value F-statistic value.
Pr(F) P-value.

See Also

"interaction.20x", "anova".

Examples

## 
data(computer)
attach(computer)
levene.test(score ~ factor(selfassess))
detach(computer)

[Package s20x version 2.0.1 Index]