Get nearby locations

Given a location, a square distance matrix, and numeric value (radius_miles), this helper function returns a 2-column data frame listing the locations within that radius

Usage

get_nearby_locations(center_location, distance_matrix, radius_miles)

Arguments

center_location

location

distance_matrix

a distance matrix

radius_miles

a numeric value >0

Value

a data.table

Examples

dm <- zip_distance_matrix("MD")$distance_matrix
nearby_locations <- get_nearby_locations("21228", dm, 10)