Tuesday, April 16, 2013

Nominal Area Choropleth Map

 
 
Nominal area choropleth maps are used to display nominal data in a specific region. This is data includes categories like race, political party, ethnicity, etc.. Data produced by assigning observations into unranked categories are said to be nominal level measurements. Nominal categories can be differentiated and grouped into categories, but cannot logically be ranked from high to low.
 
 
The image above is a Nominal Area Choropleth map that measures the highest percentage of minorities by state here in the U.S.
 

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