R: States of the U.S.A.

States of the U.S.A.

data(state)

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

R currently contains the following `state' data sets. Note that all data are arranged according to alphabetical order of the state names.

state.abb: character vector of 2-letter abbreviations for the state names.
state.area: numeric vector of state areas (in square miles).
state.center: list with components named x and y giving the approximate geographic center of each state in negative longitude and latitude. Alaska and Hawaii are placed just off the West Coast.
state.division: factor giving state divisions (New England, Middle Atlantic, South Atlantic, East South Central, West South Central, East North Central, West North Central, Mountain, and Pacific).
state.name: character vector giving the full state names
state.region: factor giving the region (Northeast, South, North Central, West) that each state belongs to.
state.x77: matrix with 50 rows and 8 columns giving the following statistics in the respective columns.
- Population: population estimate as of July 1, 1975
- Income: per capita income (1974)
- Illiteracy: illiteracy (1970, percent of population)
- Life Exp: life expectancy in years (1969㫟)
- Murder: murder and non-negligent manslaughter rate per 100,000 population (1976)
- HS Grad: percent high-school graduates (1970)
- Frost: mean number of days with minimum temperature below freezing (1931�) in capital or large city
- Area: land area in square miles

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

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