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st: how determine area and center of polygon (triangle, square, pentagon) in Stata ???


From   Dietrich Drüner <dietrich.druener@web.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: how determine area and center of polygon (triangle, square, pentagon) in Stata ???
Date   Wed, 26 Nov 2003 11:00:36 +0100

Dear list contributors,

how can I calculate the area and the center (of gravity) of a polygon
(triangle, square, pentagon) in Stata?

I have got data on the coordinates of the points forming the polygon. My
goal is to calculate spatial models for my PhD in political science.

Thanks a lot!

Dietrich.

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