# R Dataset / Package car / Leinhardt

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## Visual Summaries

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Dataset Help

On this Picostat.com statistics page, you will find information about the Leinhardt data set which pertains to Data on Infant-Mortality. The Leinhardt data set is found in the car R package. You can load the Leinhardt data set in R by issuing the following command at the console data("Leinhardt"). This will load the data into a variable called Leinhardt. If R says the Leinhardt data set is not found, you can try installing the package by issuing this command install.packages("car") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the Leinhardt R data set. The size of this file is about 3,334 bytes.

Documentation

## Data on Infant-Mortality

### Description

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

### Usage

Leinhardt


### 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. (2008) Applied Regression Analysis and Generalized Linear Models, Second Edition. Sage.

Fox, J. and Weisberg, S. (2011) An R Companion to Applied Regression, Second Edition, Sage.

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Dataset imported from https://www.r-project.org.

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