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Spatial statistics and other spatial analytical methods integrate space and spatial relationships directly into their mathematics; they utilize area, distance, length, or proximity, for example. For many spatial analysis methods, these spatial relationships are specified formally through values called spatial weights. Spatial weights are often stored as a table or as a file in the GIS and are typically organized in the format of a spatial weights matrix.

The Spatial Weights Matrix

A spatial weights matrix quantifies the spatial relationships that exist among features in a data set, or at least it quantifies the way we conceptualize those relationships. While physically implemented in a variety of ways, conceptually, the spatial weights matrix is an N × N table, where N is the number of features in the ...

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