t3way: A three-way ANOVA for trimmed means.

In WRS2: A Collection of Robust Statistical Methods

A three-way ANOVA for trimmed means.

Description

This function computes a three-way ANOVA for trimmed means with all interactions effects.

Usage

t3way(formula, data, tr = 0.2, ...)

Arguments

formula	an object of class formula.
data	an optional data frame for the input data.
tr	trim level for the mean.
...	currently ignored.

Value

Returns an object of class t3way containing:

Qa	first main effect
A.p.value	p-value first main effect
Qb	second main effect
B.p.value	p-value second main effect
Qc	third main effect
C.p.value	p-value third main effect
Qab	first two-way interaction effect
AB.p.value	p-value first two-way interaction effect
Qac	second two-way interaction effect
AC.p.value	p-value second two-way interaction effect
Qbc	third two-way interaction effect
BC.p.value	p-value third two-way interaction effect
Qabc	three-way interaction effect
ABC.p.value	p-value three-way interaction effect
call	function call
varnames	variable names

References

Wilcox, R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Elsevier.

See Also

t1way, t2way

Examples

t3way(aggressive ~ degree*gender*type, data = movie)

WRS2 documentation built on March 19, 2024, 3:08 a.m.