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library(devtools) # package building
library(dplyr) # data wrangling
library(sf) # simple features objects
library(tigris) # access census tiger/line data
stLouis <- tracts(state = "MO", county = 510)
stLouis <- st_as_sf(stLouis)
stLouis <- select(stLouis, STATEFP, COUNTYFP, TRACTCE, GEOID, NAME, NAMELSAD)
use_data(stLouis, overwrite = TRUE)
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