t3way function

A three-way ANOVA for trimmed means.

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

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.

Returns

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)