5 socio-economic variables from Harman (1967)

Description

Harman (1967) uses 5 socio-economic variables for demonstrations of principal components and factor analysis. This example is used in the SAS manual for Proc Factor as well.

Usage

data(Harman.5)

Format

A data frame with 12 observations on the following 5 variables.

population

a numeric vector

schooling

a numeric vector

employment

a numeric vector

professional

a numeric vector

housevalue

a numeric vector

Details

Harman reports that the data "were taken (not entirely arbitrarily) from a study of the Los Angeles Standard Metropolitan Statistical Area. The twelve individuals are used in the examples are census tracts." (p 13).

Source

Harman, Harry Horace (1967), Modern factor analysis. Chicago, University of Chicago Press.

References

SAS users manual, chapter 26: pages 1123-1192

Examples

data(Harman.5)
pc2 <- principal(Harman.5,2,scores=TRUE)
pc2$residual
biplot(pc2,main="Biplot of the Harman 5 socio-demographic variables")