Wednesday, April 2, 2014

10. Choropleth maps

http://my.ilstu.edu/~jrcarter/Geo204/Choro/Tom/
Chloropleth maps are thematic, where each spatial unit is defined with a uniform color/pattern to describe a specific set of data. The defined areas indicate an average value of quantity (or property) in those areas. For example in this map you can see that the percent of Hispanics in Florida by county is organized in a ratio value, and uses a green graded color series to depict the intensity (from light yellow to green).

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