WA: SpatialPolygonsDataFrame for the state of Washington, USA
Description
A SpatialPolygonsDataFrame [package "sp"] containing polygons
that comprise the state of Washington.
Usage
data("WA")
Arguments
Format
A SpatialPolygonsDataFrame containing 50 polygons whose union outline
boundaries of the state of Washington. Source of the Shapefile from which these
polygons were queried is
http://nationalmap.gov/small_scale/atlasftp.html (file 'statesp020.tar.gz').
Attributes of the polygons are:
AREA = Size of the polygon in square kilometers.
PERIMETER = The perimeter of polygon in kilometers.
STATESP020 = Internal feature number
STATE = The name of the State or State equivalent.
STATE_FIPS = The 2-digit FIPS code of the State or State equivalent.
ORDER_ADM = An ordinal value indicating the State's order of admission to the United States.
MONTH_ADM = The month when the State was admitted to the United States.
DAY_ADM = The day when the State was admitted to the United States.
YEAR_ADM = The year when the State was admitted to the United States.
LAND_TYPE = Type of the polygon. Types are "ISLAND", "MAINLAND", "OCEAN"
The proj4string is +proj=utm +zone=10 +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0,
meaning among other things that the coordinates are projected zone 10 UTM's in meters.
The rectangular bounding box of all polygons is