An index value plot is a type of geovisualization that portrays geographic information on a plot rather than a map. Index value plots are used to show variations from the normal standard over time. The index value plot above is representing the variation of expanding and contracting companies from the normal index value of 50 from 1997-2009. This plot is able to clearly depict the ups and downs of our economy which can be very useful in determining recession conditions.
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