The purpose of a choropleth map is to show areal data. The information is usually relating to area and is usually in measurements of square mile. Choropleth maps average area either using density or percentages. There are many types of choropleth maps. This map shows average areal distribution of orchards in the united states. It came from the USDA website.
Wednesday, June 11, 2008
Choropleth Maps
The purpose of a choropleth map is to show areal data. The information is usually relating to area and is usually in measurements of square mile. Choropleth maps average area either using density or percentages. There are many types of choropleth maps. This map shows average areal distribution of orchards in the united states. It came from the USDA website.
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