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Instructions provided describe how to identify point pairs that are extremely close, so that one of each pair can be deleted.
This procedure is designed to help when data has errant duplicates that are not identical but lie within a very small distance of each other, for example, 2cm.
Create a buffer on the points dataset with an extremely small value, for example 3cm, and then perform an intersect on that buffer polygon. The results are the intersection of the buffer polygons, which are at the location of points that are within 6cm of each other. Use that intersected buffer layer to zoom to these points, and then manually delete one of them.
As the buffered polygons are very small, for example, 3cm wide, only features from points that are within 6cm of each other are output.