choropleth

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Noun

choropleth (plural choropleths)

1. (sometimes attributive) Ellipsis of choropleth map.
   • 1994, Osman Balci, Simulation and Modeling, page 466:

     The choropleths were generated using the SAS/GRAPH software package [23]. […] On each choropleth, the blocks in the key are labeled between zero and one, in interval increments of 0.05 over the range of the sample cdf values.

   • 2008, Nicholas J. Tate, Peter F. Fisher, David J. Martin, “Chapter 13: Geographic Information Systems and Surfaces”, in John P. Wilson, A. Stewart Fotheringham, editors, The Handbook of Geographic Information Science, page 241:

     An elevation matrix approximation provides us with very small, regularly placed units which can overcome many of the problems of choropleth representation.

   • 2012, R. B. Thapa, R. C. Estoque, 6: Grographically Weighted Regression in Geospatial Analysis, Yuji Murayama, Progress in Geospatial Analysis, page 90,

     Previous approaches to mapping the results of GWR have primarily employed an equal-step classification and sequential no-hue color scheme for choropleth mapping of parameter estimates.

Related terms

• choroplethic