To use this function, the HUD_KEY system environment variable must be set first: use hud_set_key("the_key") to do this.
Given cbsadiv(s) and zip(s), determine if they overlap using the crosswalk files. Overlap will be described if any residential, business, other, or total addresses reside in both.
This means that it is possible that certain geoids(lhs) are not counted even though their boundaries intersect the queried geoids(rhs). This is likely because addresses do not lie in their intersecting region.
Infix operators default to most recent year and quarter of which the crosswalk files are available. For modifying the year and quarter parameter, take a look at their non-infix versions.
Arguments
- cbsadiv
The cbsadiv(s) to determine overlap with zip(s).
- zip
The zip(s) to determine overlap with cbsadiv(s).
Examples
if (FALSE) {
# HUD API is broken for year 2021, quarter 3.
43340 %z_in_cbsadiv% 71052
}