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vcdExtra (version 0.5-2)

Abortion: Abortion Opinion Data

Description

Opinions about abortion classified by gender and SES

Usage

data(Abortion)

Arguments

format

A 3-dimensional array resulting from cross-tabulating 3 variables for 1100 observations. The variable names and their levels are:

rll{ No Name Levels 1 Sex "Female", "Male" 2 Status "Lo", "Hi" 3 Support_Abortion "Yes", "No" }

source

Christensen, R. (1990). Log-Linear Models, New York, NY: Springer-Verlag, p. 92, Example 3.5.2.

Christensen, R. (1997). Log-Linear Models and Logistic Regression, New York, NY: Springer, p. 100, Example 3.5.2.

Details

The combinations of Sex and Status represent four independent samples, having fixed Sex-Status marginal totals. Thus the Sex:Status association must be included in any loglinear model. Support_Abortion is a natural response variable.

Examples

Run this code
data(Abortion)

# example goes here
ftable(Abortion)
mosaic(Abortion, shade=TRUE)

# stratified by Sex
fourfold(aperm(Abortion, 3:1))
# stratified by Status
fourfold(aperm(Abortion, c(3,1,2)))

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