Wednesday, April 22, 2009

Star plots


Star Plots are a useful way to display multivariate observations with an arbitrary number of variables. Each observation is represented as a star-shaped figure with one ray for each variable. For a given observation, the length of each ray is made proportional to the size of that variable. For example each star plot above represents a vehicle make and model. each ray represents a variate such as weight, price, size, horsepower, and many more. The length of each ray represents the value for that variate.

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