WRS2 (version 0.2-0)

t1waybt: Bootstrap version of the heteroscedastic one-way ANOVA for trimmed means.

Description

Test the hypothesis of equal trimmed means using a percentile t bootstrap method.

Usage

t1waybt(formula, data, tr = 0.2, nboot = 599, SEED = TRUE)

Arguments

formula

an object of class formula.

data

an optional data frame for the input data.

tr

trim level for the mean.

nboot

number of bootstrap samples.

SEED

whether a random number seed should be set.

Value

• Returns an object of class t1waybt containing:
• test
  value of the test statistic
• p.value
  p-value
• Var.Explained
  explained amount of variance
• Effect.Size
  effect size
• nboot.eff
  effective number of bootstrap samples
• call
  function call

References

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

See Also

t1way,med1way

Examples

t1waybt(libido ~ dose, data = viagra)