Duplicating neighbours ----------------------
^dupneigh5^ locivar locjvar
Description -----------
^dupneigh5^ duplicates spatial neighbourhood information of the form
locivar locjvar ------- ------- 1 2 1 3 1 4 2 4 3 4
so that it takes the form
1 2 1 3 1 4 2 4 3 4 2 1 3 1 4 1 4 2 4 3
In the first form, the neighbourhood of two locations is indicated once and in the second form it is indicated twice.
In fact, any numeric or string identifiers may be used.
Remarks -------
^dupneigh5^ is a utility for users of ^spautoc5^.
Examples --------
. ^dupneigh5 i j^
Author ------
Nicholas J. Cox, University of Durham, U.K. n.j.cox@@durham.ac.uk
Also see ---------
On-line: help for @spautoc5@, @neigh5@, @numids5@