I am a PhD student preparing for my oral examinations on Tuesday morning at
9am. I will present research I have done using the Local Indicators of
Spatial Association from SPlus Spatial Statistics for ArcView. I am using
the Geary statistic.
I realized I had a problem when my readings into the meaning of the Geary
statistic said the values should be range from 0 to 2 with low values
indicating high correlation. My values typically ranged well above two, and
high values seemed to indicate places of high correlation. Page 112 of the
online help file sarcview.pdf showed similar types of results with Geary
values ranging from 0 to 24.30. It seems that the global Geary statistic
works on the 0 to 2 scale, but the local Geary statistic does not have
similar outputs.
For my exam on Tuesday, I need to understand the theoretical link between
the global Geary statistic and the estimate from "generalized versions of
the local Geary indicator of spatial association" mentioned in the S-Plus
for ArcView help file for Local Spatial Association, but I cannot find the
equation used for the local Geary in the SPlus documentation.
Can you help?
Your assistance will be sincerely appreciated.
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