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When curating data, sometimes it is easier to see patterns if you use a sector plot instead of the classic Cartesian coordinate system. Here is an example of a sector plot with sector angles proportional to and radii proportional to for values ranging from 30 to the number of data points. The curve is spiraling inward while the angle remains constant. Thus from a visual inspection, it is evident that a negative linear relationship is present.

Contributed by: Adam Griffith (March 2011)
Open content licensed under CC BY-NC-SA




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