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RE: Re: st: Is Stata used for spatial statistics/GIS?


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: Re: st: Is Stata used for spatial statistics/GIS?
Date   Thu, 19 Feb 2004 17:29:18 -0000

. findit moran 

points to Stata solutions, as also does 

. findit spatial 

recommended earlier by Laurel Copeland. 

However, when you talk of Moran's I, 
not all programs calculate exactly the 
same thing. 

-spautoc- calculates a single measure, 
while -spatcorr- (M. Pisati) calculates 
a correlogram. 

Many observations could be a problem 
for programs based on the use of Stata's 
matrix functions, depending partly on 
what version of Stata you are using. -spatcorr-
uses them; -spautoc- doesn't. 

Nick 
n.j.cox@durham.ac.uk 

Liv Osland

> Has anybody used Stata to estimate Moran's I?
> The problem is what to do when there are many
> observations (for instance 3000).

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