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st: Latitude, Longitude and distances


From   "MA V" <ma_v@hotmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Latitude, Longitude and distances
Date   Wed, 30 Aug 2006 17:05:51 +0000

Dear statalist users,
My problem is the following:
(and I am sending it again to the statlist since the follow-ups to my initial email were not follow-ups to my question)
I have a dataset that has 3 variables: location_id, latitude, longitude.
I would like to calculate the distances between the locations but I'm not sure of what is the best way of storing this information in Stata. Suppose we have 30 locations (i.e. 30 observations).
Any ideas on how to to calculate the distances and, more importantly, on how to store them (in an effective way, for future manipulation)?
Thanks for your help!

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