When using IDW interpolation in ArcGIS, how should I determine the number of nearest input sample points to be used to perform interpolation?

The default number is 12, but it may be incorrect.

closed as unclear what you're asking by PolyGeo Oct 10 '16 at 22:32

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  • When you tested using 12 was there something in the results that made you think that number may be "incorrect"? – PolyGeo Oct 10 '16 at 22:32