Thursday, April 17, 2014

Unvariate Choropleth Maps

http://www.theatlantic.com/politics/archive/2010/08/you-learn-something-every-day-choropleth/60720/

Unvariate choropleth maps:


  • An unvariate choropleth map displays data from only one variable.
  •  the image above illustrates unemployment rates in January of 2007 by county.

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