I'm looking for a program that can analyse/calculate the distances
between multiple points. More specifically, I need something that
analyses the overlapping trade areas of locations from one group to
that of another group (i.e. how many locations from group A fall
within a 5km radius from locations from group B).
Currently I have several groups saved in separate kml files. There are
up to 1000 locations under each group.
Is there such a program that can do this?