census_tracts_sf.Rd
A simple feature containing the 2010 Chicago census tracts that can only be used with the sf
package.
data("census_tracts_sf")
A simple feature (which is either data.frame
or tibble
) with a geometry list-column with 801 observations on the following 10 variables:
statefp10
17, a 2-digit code from the American National Standards Institute/Federal Information Processing Standards (ANSI/FIPS) that represents the State of Illinois
name10
un-padded 3-to-6 digit (excluding the decimal point) name of the census tract
commarea_n
numeric name of the community area that the census tract lays within, which can be used as a crosswalk to identify particular census tracts in a given community area
namelsad10
character name of the census tract
commarea
numeric name of the community area that the census tract lays within, which can be used as a crosswalk to identify particular census tracts in a given community area
geoid10
11-digit code that unique identifies the census tract as a concatenation of statefp10
(2-digits) + countyfp10
(3-digits) + tractce
(6-digits)
notes
not every census tract lays exactly within a community area which is where the City of Chicago made notes regarding instances of overlap, low population, or a census tract falling outside the City's boundaries
tractce10
padded 6-digit name of the census tract
countyfp10
3-digit county name for Cook County
geometry
a list that contains the dimensions and the simple feature geometry type
The following is sf
installation advice from Matt Herman:
Depending on your operating system and available libraries, sf
can be tricky to install the first time. The sf
website is a good place to start if you're having trouble. If you're using macOS, this is a good guide to installing the required libraries.
This sf
object comes from the City of Chicago Data Portal,
Boundaries - Census Tracts - 2010. The file was last updated on July 11, 2018.
sf
documentation has helpful information on how to work with sf
objects.
# load necessary packages ---- library(sf) # load necessary data ---- data("census_tracts_sf") # plot Chicago 2010 census tracts ---- par(mar = c(0, 0, 1, 0)) plot(census_tracts_sf$geometry , main = "2010 City of Chicago census tracts" , col = "gray85" , border = "dodgerblue4")