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| GeoCommunity Mailing List |
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| Mailing List Archives |
| Subject: | RE: [gislist] cluster or group points in AV3.2 |
| Date: |
01/07/2004 02:25:01 PM |
| From: |
Rowe, John |
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Try gridding them, and then converting the grid to=20
a polygon based on similar attributes perhaps.
Depends on what data is represented by the points.
If no data is connected to the points, grid the Integer values of =
lon/lat of the points. May be a start.
Hope it helps
John
-----Original Message-----
From: RICK GRAY [mailto:RGRAY@ridgetownc.uoguelph.ca]
Sent: Wednesday, January 07, 2004 3:19 PM
To: gislist@lists.geocomm.com
Subject: [gislist] cluster or group points in AV3.2
I sent out a request before Christmas for something similar, but didn't
get a useful response, so I am trying again - from a slightly different
angle.
My problem is this: I have a few hundred points on a map. I need to
group them (to make territories). Is there a script or a method to
cluster these into X points per territory. Or to divide the total into Y
territories and have ArcView group them. Sort of along the lines of
Thiessen polygons but for groups instead of individual points.=20
It would be best if I could work with selected points (to eliminate
small outlying clusters from the main calculation) but that could be
accomplished by removing the unwanted points first.
I do have both Spatial Analyst and Network Analyst available, if this
would help me.
If anyone has some ideas, or know of a script that already does this,
I'd love to hear from you.
Rick
This message has been scanned by Mcafee Anti-virus Software and is =
certifed virus free.=20
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