fk.test: Fligner-Killeen Test

In vartest: Tests for Variance Homogeneity

Fligner-Killeen Test

Description

fk.test performs Fligner-Killeen variance homogeneity test.

Usage

fk.test(formula, data, alpha = 0.05, na.rm = TRUE, verbose = TRUE)

Arguments

formula	a formula of the form lhs ~ rhs where lhs gives the sample values and rhs the corresponding groups.
data	a tibble or data frame containing the variables in formula.
alpha	the level of significance to assess variance homogeneity. Default is set to alpha = 0.05.
na.rm	a logical value indicating whether NA values should be stripped before the computation proceeds.
verbose	a logical for printing output to R console.

Value

A list containing the following components:

statistic	the corresponding test statistic.
parameter	the parameter(s) of the approximate chi squared distribution of the test statistic.
p.value	the p-value of the test.
method	the character string "Fligner-Killeen Test".
data	a data frame containing the variables in which NA values (if exist) are removed.
formula	a formula of the form lhs ~ rhs where lhs gives the sample values and rhs the corresponding groups.

Author(s)

Gozde Cosar and Osman Dag

References

Fligner, M.A., Killeen, T.J.(1976). Distribution-Free Two-Sample Tests for Scale. Journal of the American Statistical Association, 71:353, 210-213.

Conover, W.J., Johnson, M.E., Johnson, M.M. (1981). A Comparative Study of Tests for Homogeneity of Variances, with Applications to the Outer Continental Shelf Bidding Data. Technometrics, 23:4, 351-361.

See Also

fligner_test

Examples

library(vartest)

fk.test(Sepal.Length ~ Species, data = iris)

vartest documentation built on May 29, 2024, 10:21 a.m.