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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Should I use a discrete or continuous scale for coloring a chloropleth?

I am making a choropleth for an upcoming local race using D3. There are two candidates running for an election. For any given polygon on my map, if the red candidate has more votes, the color should ...
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212 views

Choropleth Mapping Using Quantile Method in CartoDB

Does anyone know how CartoDB calculates the buckets for a choropleth map using the quantile method? My understanding of choropleth maps that use the quantile method is that they will assign an equal ...
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Overlap or intersect two choropleth [closed]

I have two choropleth of the same area but with different concentration data and I need to overlap them. My aim is to highlight the areas of intersection between the points with the highest ...