usa
database contains the national boundaries of the United States, the
state
database includes state boundaries, and the
county
database includes all county boundaries. These maps are generated from US Department of the Census data; see the reference below for more information.
maps
library. To make them available in your Spotfire S+ session, use the command
library(maps)
.
map("usa") map("state") map("county")
Becker, R.A. and Wilks, A.R. (1991). Maps in S. AT&T Bell Laboratories Statistics Research Report.
US Department of Commerce, Census Bureau. County Boundary File. Computer tape available from Customer Services: Bureau of the Census, Washington, D.C. 20233.
# load the maps library library(maps) map("state", fill=T, col=colors)