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z-score of Anselin Local Moran's I

Question asked by HEY_Candice on May 6, 2015
Latest reply on May 8, 2015 by HEY_Candice

Hi!!

On the website ArcGIS Help 10.1 is the formula of z-score of Anselin Local Moran's I. Why are E[I] and E[I2] calculated like that?

Although in "Mitchell, Andy. The ESRI Guide to GIS Analysis, Volume 2. ESRI Press, 2005" has the same formula of E[I], but there is nothing about E[I2].

Why is the E[I] not the average of neighbor's I even with an exact search radius? Why is V[I] not just the Standard Deviation of neighbor's I?

 

Attached is the formula of z-score.

 

 

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