Is it a CSA code?

Is it a CSA code?

Usage

is_csa(x)

Arguments

x

A character vector.

Value

Logical vector; TRUE for a 3-digit Combined Statistical Area code in the Census delineation (.csa lookup).

See also

Other geography detectors: is_block_fips(), is_block_group_fips(), is_cbsa(), is_census_region(), is_county_fips(), is_metro_area_name(), is_nces_locale(), is_state_fips(), is_tract_fips(), is_urban_rural()

Examples

is_csa(c("101", "408", "999", NA))
#> [1]  TRUE  TRUE FALSE    NA