countyExample | R Documentation |
The U.S. legal/statistical areas, their median household income, and a matrix of knots provided only to facilitate illustrative examples.
data(countyExample)
countyExample contains 3 objects:
A SpatialPolygonsDataFrame containing 3109 areas. For each areal unit, the following data are defined
identifier for legal/statistical area
state containing the legal/statistical area
name of the legal/statistical area
legal/statistical area description
area of the county in square meters.
perimeter of the county in meters.
A 3109x2 matrix containing the public-use American Community Survey (ACS) 2013 5-year estimated county-level median household income and its variance.
log of the estimated median household income.
approximate variance of the log median household income (using the Delta method).
A 75x2 matrix of knots spanning the county data.
x coordinate
y coordinate
U.S. Census Bureau. 2013-2017 American Community Survey 5-year Estimates; generated by Jonathan Bradley; using American FactFinder.
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