http://qs1969.pair.com?node_id=182777


in reply to Re: Sorting by geographical proximity / clumping groups of items based on X and Y
in thread Sorting by geographical proximity / clumping groups of items based on X and Y

I would say the most likely definition would be that all items within a clump are at most X feet from any other item in the clump. X would probably have a default of 300 feet or so but could be user-definable.