Description

The Leinhardt data frame has 105 rows and 4 columns. The observations are nations of the world around 1970.

Usage

Format

This data frame contains the following columns:

income

Per-capita income in U. S. dollars.

infant

Infant-mortality rate per 1000 live births.

region

A factor with levels: Africa; Americas; Asia, Asia and Oceania; Europe.

oil

Oil-exporting country. A factor with levels: no, yes.

Details

The infant-mortality rate for Jamaica is misprinted in Leinhardt and Wasserman; the correct value is given here. Some of the values given in Leinhardt and Wasserman do not appear in the original New York Times table and are of dubious validity.

Source

Leinhardt, S. and Wasserman, S. S. (1979) Exploratory data analysis: An introduction to selected methods. In Schuessler, K. (Ed.) Sociological Methodology 1979 Jossey-Bass.

The New York Times, 28 September 1975, p. E-3, Table 3.

References

Fox, J. (2016) Applied Regression Analysis and Generalized Linear Models, Third Edition. Sage.

Fox, J. and Weisberg, S. (2019) An R Companion to Applied Regression, Third Edition, Sage.