Simpson {BSDA}R Documentation

Grade point averages of men and women participating in various sports-an illustration of Simpson's paradox

Description

Data for Example 1.18

Usage

Simpson

Format

A data frame with 100 observations on the following 15 variables.

gpa
a numeric vector
spor
a numeric vector
gender
a numeric vector
gpamale
a numeric vector
sptmale
a numeric vector
gpafemal
a numeric vector
sptfemal
a numeric vector
bbgpa
a numeric vector
genderbb
a numeric vector
sogpa
a numeric vector
genderso
a numeric vector
tkgpa
a numeric vector
gendertk
a numeric vector
gradept
a numeric vector
gender2
a numeric vector

Source

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Duxbury

Examples

str(Simpson)
attach(Simpson)
par(mfrow=c(1,2))
boxplot(gpa~gender,col=c("blue","pink"),names=c("Male","Female"),
main="GPA versus Gender",xlab="Gender",ylab="Grade Point Average")
boxplot(gradept~gender2,las=2,col=c("blue","pink"),
names=c("M-BBALL","F-BBALL","M-SOCC","F-SOCC","M-TRAC","F-TRAC"),
ylab="Grade Point Average",main="GPA vs Gender by Sports")
par(mfrow=c(1,1))
detach(Simpson)

[Package BSDA version 0.1 Index]