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st: AW: data points within radius?

From   "Martin Weiss" <>
To   <>
Subject   st: AW: data points within radius?
Date   Tue, 7 Jul 2009 09:07:19 +0200


Maybe this FAQ by NJC gives you some hints:


-----Ursprüngliche Nachricht-----
[] Im Auftrag von David Torres
Gesendet: Dienstag, 7. Juli 2009 04:31
Betreff: st: data points within radius?

I have two datasets that were nonmatch merged and I need to get the  
number of data points of the using data set that are within various  
radii of each of the unique levels of the master data set.  To be  
clear, both data sets have longitude and latitude coordinates in  
decimal degrees.  Now, I have tried the -circnum- user-created  
command, but I think it only calculates points within radius of one  
pair of coordinates.  I need something a little more sophisticated.

Can anyone help?


David Diego Torres, MA(Sociology)
PhD Candidate in Sociology

2030D Population Studies Center
University of Michigan Institute for Social Research
Ann Arbor MI  48106-1248
Tel 734.763.4098
Fax 734.763.1428
torresd at umich dot edu

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