Classed Choropleth Map

Classed Choropleth Maps

Classed Choropleth Maps, in contrast to unclassified choropleth maps, display information in colors but also provide more information about variations, this can be done in a number of ways. Below are a few examples, most classification is either categorical or numerical (nominal or interval). Depending on the information being displayed, the map maker may choose to classify in a number of categories, but most classified choropleth maps have 4- 6 different classes.

http://krygier.owu.edu/krygier_html/geog_353/geog_353_lo/geog_353_lo07.html