@subsubheading Description

Data related to the 50 states of the United States of America.

@subsubheading Format

@table @code
@item abb
State abbreviation.
@item name
State name.
@item area
Area (sq mi).
@item lat
Approximate center (latitude).
@item lon
Approximate center (longitude).
@item division
State division.
@item revion
State region.
@item Population
Population estimate as of July 1, 1975.
@item Income
Per capita income (1974).
@item Illiteracy
Illiteracy as of 1970 (percent of population).
@item LifeExp
Lfe expectancy in years (1969-71).
@item Murder
Murder and non-negligent manslaughter rate per 100,000 population (1976).
@item HSGrad
Percent high-school graduates (1970).
@item Frost
Mean number of days with minimum temperature below freezing (1931-1960)
in capital or large city.
@end table

@subsubheading Source

U.S. Department of Commerce, Bureau of the Census (1977) @cite{Statistical
Abstract of the United States}.

U.S. Department of Commerce, Bureau of the Census (1977) @cite{County
and City Data Book}.

@subsubheading References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988). @cite{The New S
Language}. Monterey: Wadsworth & Brooks/Cole.

@subsubheading Examples

@example
@INCLUDE_DATASET_EXAMPLE_SCRIPT{state_1.m}
@end example
