State name, abbreviation, US Census designated division & region.
state_info
A data frame with 51 rows representing airlines and 4 variables:
State name
State abbreviation
US Census designated division. Values for division
are nested within region
US Census designated region
US Census Bureau https://en.wikipedia.org/wiki/List_of_regions_of_the_United_States#Interstate_regions.
#> # A tibble: 9 × 2 #> division n #> <chr> <int> #> 1 East North Central 5 #> 2 East South Central 4 #> 3 Mid-Atlantic 3 #> 4 Mountain 8 #> 5 New England 6 #> 6 Pacific 5 #> 7 South Atlantic 9 #> 8 West North Central 7 #> 9 West South Central 4#> # A tibble: 4 × 2 #> region n #> <chr> <int> #> 1 Midwest 12 #> 2 Northeast 9 #> 3 South 17 #> 4 West 13