I am running an IDW on a data set that represents point values of water current speed. I would like to run the IDW only within the water area of another shapefile that shows the shape of the water body. So far I have only been able to keep the IDW to the XY extents (a square) of the data points, not within the waterbody shape. Any ideas about how to do this would be very helpful
closed as unclear what you're asking by PolyGeo♦ Nov 10 '17 at 5:47
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