How can I make a contour map from a scatter plot?

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I have a set of x-y coordinates of points (around 100,000 of them) and I want to make a contour map of their concentration in the x-y plane. In other words, closer contours in areas where there are a larger number of points. Does anyone have any suggestions on how I might go about this?

Accepted Answer

Walter Roberson
Walter Roberson on 3 Jul 2013
Edited: Walter Roberson on 3 Jul 2013

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