kwdata: Non-parametric Kruskal Wallis data example

Description Format Source Examples

Description

Artificial dataset to show that the p-value obtained for the Kruskal Wallis is only valid _after_ the distributional form has been checked to be the same for all groups.

Format

An artificial data frame with 18 observations in each of three groups.

x

measurements for group 1

y

measurements for group 2

z

measurements for group 3

Source

Data example found on the internet

Examples

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3
data(kwdata)
newdata <- stack(kwdata)
kruskal.test(values ~ ind, newdata)

MESS documentation built on May 29, 2017, 2:39 p.m.

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