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Average Nearest Neigbor - Influence of sample size?

Question asked by J.E. on Oct 21, 2014
Latest reply on Oct 23, 2014 by Dan_Patterson

Hello.

 

I have a simple question about the Average Nearest Neighbor Tool in the Spatial Statistics Toolbox. I understand, that the result is heavily influenced by the size of the study area. This shouldn't be a problem for me, since I am always studying the same city. I want to compare five different samples (incident data) to each other by looking the z- and p-scores.

The problem is, that the biggest sample contains 500 incidents and the smallest one 100 incidents. Hence, my question is: Is the number of incidents also influencing my results? And comparisons in that case are not valid?

 

At least it seems to me as if this is the case - higher number of incidents causes higher clustering...

 

Thanks for your help,

 

Jakob

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