I have a set of points and I would like to calculate a value for each point to indicate how 'clustered' to other points that point is.

Distance to nearest neighbour (through a network) would do fine. Other clustering measures with significance would be good too: but Getis Ord GI and Local Moran's I rely on the points having attribute values, which mine don't.

How can you do this in ArcGIS, produce a measure for each point that tells you something about how clustered that point is, without attribute values?

  • do you have network analyst ? you could then use OD cost matrix
    – radouxju
    Jan 8, 2015 at 15:11

2 Answers 2


Point Distance tool will give you distance from one point to all points in a given search radius. Then you can use the output to see concentreated areas with certain visualization tools such as "Quantities" or cut-off some points by using definition query. If you have a network graph then you can use OD Cost Matrix tool.


Have you tried this tool: Standard Distance?


  • I believe it only works on geometric mean center. Question seems to be about a different problem.
    – Celik A
    Jan 8, 2015 at 17:26
  • I gave the best answer I could find to an ambiguous question. How "clustered" something is can certainly be determined by analyzing its STDV from a mean center. Jan 8, 2015 at 17:32

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