Talk:Moran's I

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"In practice, values greater than 2 or smaller than -2 indicate spatial autocorrelation that is significant at the 5% level."

The value of Moran's I ranges from -1 for negative spatial autocorrelation to +1 for positive spatial autocorrelation. Probably z scores are meant?

[edit] source

Moras'I statistic is well explained, but the source:

Moran, P.A.P. (1950), Notes on Continuous Stochastic Phenomena, Biometrika, 37, 17-33.

is not correct. Moran discussed something completely different in that work. —Preceding unsigned comment added by 149.157.1.184 (talk) 16:40, 14 March 2008 (UTC)

Some clue about where the wij's come from would make this article alot more useful. —Preceding unsigned comment added by 129.49.66.240 (talk) 13:19, 27 May 2008 (UTC)