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Statistical Issues in Spatial Modeling

If Moran’s I is positive and closer to 1.0, it means that the data in the units are similar across space, and that there is a great deal of spatial clustering. If the value of Moran’s I is close to zero, it means the data are randomly distributed across space, and if the value of Moran’s I is negative and closer to −1.0, this means that the data are dissimilar from one spatial unit compared to another, and therefore there is little clustering of similar observations on this variable.