A choropleth map is a thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical variable being displayed on the map, such as population density or per-capita income.

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Choropleth in R: custom breaks and plotting

I have a question with regard to plotting a choropleth map. What is recommended with regard to plotting a map with custom breaks? And make it look a bit attractive. In my script I have used the ...
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Simplest Way to Create a Custom Choropleth Map for a Website?

I am working on a choropleth map for a real estate site. My current workflow is: Edit and save SHP file's DBF in Libre Office Calc. Load SHP file into Quantum GIS. Set colored breakpoints based on ...