WA.cities: SpatialPointsDataFrame of cities in Washington state, USA

In SDraw: Spatially Balanced Samples of Spatial Objects

Description

A SpatialPointsDataFrame [package "sp"] containing the locations of cities in Washington state, USA.

Usage

data("WA.cities")

Format

A SpatialPointsDataFrame containing one point for each of 815 cities in Washington state. Source of the Shapefile from which these cities were queried is http://nationalmap.gov/small_scale/atlasftp.html (file 'citiesx010g.shp.tar.gz').

The attributes of each point are:

1. GNIS_ID = A unique identification number assigned by the Geographic Names Information System (GNIS). This number can be used to link places in this data set with GNIS.

2. ANSICODE = A unique identification number assigned by the U.S. Census Bureau. This number can be used to link places in this data set with the Census Gazetteer data.

3. FEATURE = The type of feature, as assigned by GNIS. Values are 'Census', 'Civil', and 'Populated Place'.

4. FEATURE2 = The status of the city or town. Values are -999 (missing), 'County Seat', and 'State Capital County Seat'.

5. NAME = The name of the city or town.

6. POP_2010 = The 2010 population of the city or town. Locations with a population of 0 are listed as such in the Census source data.

7. COUNTY = The name of the county or county equivalent where the city or town is located.

8. COUNTYFIPS = The 3-digit FIPS code of the county or county equivalent.

9. STATE = The 2-character abbreviation for the State in which the city or town is located. Values are 'WA'.

10. STATE_FIPS = The 2-digit FIPS code for the State in which the city or town is located.

11. LATITUDE = The latitude of the city or town as it appears in this data set.

12. LONGITUDE = The longitude of the city or town as it appears in this data set.

13. PopPlLat = The latitude of the city or town as it appears in the source data.

14. PopPlLong = The longitude of the city or town as it appears in the source data.

15. ELEV_IN_M = The elevation, in meters, of the city or town. Determined from GNIS or from topographic map sources.

16. ELEV_IN_FT = The elevation, in feet, of the city or town. Determined from GNIS or from topographic map sources.

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 containing all points is

	min	max
x	377703.1	957996.8
y	5047878.6	5438319.2

Examples

max.popln <- max(WA.cities$POP_2010)
plot(WA.cities, pch=16, cex=5*WA.cities$POP_2010/max.popln, col="red" )

SDraw documentation built on July 8, 2020, 6:23 p.m.