McSpatial (version 1.1.1)

CookCensusTracts: Shapefile of Census Tracts in Cook County for 2000

Description

A map of census tracts in Cook County, Illinois with data on population, median household income, average floor area ratios, and average home ages.

source

Daniel McMillen. Data are drawn from the U.S. Census and the Cook County Assessment File.

Examples

library(maptools)
cook <- readShapePoly(system.file("maps/CookCensusTracts.shp",
  package="McSpatial"))
sampvar <- cook$CHICAGO==1|(!is.na(cook$CAREA)&cook$CAREA=="O'Hare")
cook <- cook[sampvar==TRUE,]