Re: AI-GEOSTATS: Choosing Lag Distance and Angular Tolerance
- --- Lucie Vallée <Lucie_Vallee@...>
>This is something I learned about in quantitative
> Could you explain what you mean by "nearest
> neighbour distances between samples locations"?
ecology in the 1960's ;-)
You take each sample in turn and find the sample
closest to it. Note the distance. A histogram of the
distances will give you a sort of natural inter-sample
distance for use in the semi-variogram calculation.
The histogram can also be used to check whether
sampling is randon, uniform, clustered etc.
I don't have a full reference but it should be easy to
find: Pielou, Cressie or any other book with Spatial
Statistics in the title.
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