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If your data density is so low that it is non-contiguous, the obvious alternative, which is frequency hotspot analysis using raster surfaces, won't be so good either. Also raster surfaces are not good near coastlines due to weighting issues (some cells have large chunks of sea, then you have to fiddle with weighted corrections - which requires dense ...


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As I mentioned before, the "AttributeError: 'NoneType' object has no attribute 'issparse'" error occurs the second and subsequent times I run the tool containing DBSCAN for a given feature layer. For a clean exit, I put a "try" block around the DBSCAN call. try: db = DBSCAN(eps, min_samples).fit(X) except AttributeError: arcpy.AddError("Error ...



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