npordtests (version 1.2)

jdata: Jonckheere's data

Description

This synthetic data is reported by Jonckheere (1954). The data consists of 4 groups with 4 observations in each.

Usage

jdata

Format

A data frame with 16 observations on the following 2 variables.

X

Number of samples

Y

Value

Examples

# NOT RUN {
library(npordtests)

data(jdata)
levels(jdata$X) <- c("I", "II", "III", "IV")
boxplot(Y~X,data=jdata,xlab="Groups")
# }