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Best fit ellipse

  1. #1
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    Best fit ellipse

    How can one create a best fit ellipse around a cluster of (x,y) points in a scatter plot within Excel? It is this possible?
    Thank you

  2. #2
    Forum Guru Andy Pope's Avatar
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    Does it have to be an ellipse?
    This page has code for creating a bounding area of a set of points.
    http://www.andypope.info/charts/convexhull.htm

    If you really do need an ellipse you could take the x and or y values from the 4 extreme points and then create an ellipse using trig formula.
    Cheers
    Andy
    www.andypope.info

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