0

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 '15 at 15:11
1

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.

-2

Have you tried this tool: Standard Distance?

!toolboxsnapshot

  • I believe it only works on geometric mean center. Question seems to be about a different problem. – Anıl Çelik Jan 8 '15 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. – Chris Strother Jan 8 '15 at 17:32

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.