Names and Locations of Selected U.S. Cities

SUMMARY:

The data sets city.name, city.state, city.x, and city.y contain the names and locations of 109 cities in the United States. The cities cover the geographical regions of the U.S. and were not chosen by population.

ARGUMENTS:

city.name
character vector of city names.
city.state
character vector giving the state in which each city is located.
city.x, city.y
locations of the cities. The city.x vector is negative longitude corresponding to a coordinate system set up by the usa function. The city.y vector is latitude. Both vectors are measured in degrees.