Calculate the great-circle distance between two lat/lon points
Usage
distance_greatcircle(lat1, lon1, lat2, lon2)
Arguments
- lat1
numeric; starting latitude coordinate(s)
- lon1
numeric; starting longitude coordinate(s)
- lat2
numeric; ending latitude coordinate(s)
- lon2
numeric; ending longitude coordinate(s)
Value
Distance in kilometers between lat1/lon1 and lat2/lon2