kw.test: A Function to Perform Kruskal-Wallis Test

Description Usage Arguments Value Author(s) References Examples

Description

kw.test performs Kruskal-Wallis test.

Usage

1
kw.test(y, group, na.rm = TRUE)

Arguments

y

a numeric vector of data values.

group

a vector or factor object giving the group for the corresponding elements of y.

na.rm

a logical value indicating whether NA values should be stripped before the computation proceeds.

Value

A list with class "htest" containing the following components:

statistic

the Kruskal-Wallis test statistic.

parameter

the parameter(s) of the approximate chi-squared distribution of the test statistic.

p.value

the p-value of the test.

Author(s)

Anil Dolgun, Osman Dag, N. Meric Konar

References

Sheskin, D. J. (2004). Handbook of Parametric and Nonparametric Statistical Procedures. 3rd Edition. Chapman and Hall CRC. Florida: Boca Raton.

Examples

1
kw.test(iris$Sepal.Length,iris$Species)


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