Experimental isarithmic maps visualise electoral data

Experimental isarithmic maps visualise electoral data

From the post:

David B. Sparks, a fifth-year PhD candidate in the Department of Political Science at Duke University, has today published a fascinating set of experiments using ‘Isarithmic’ maps to visualise US party identification. Isarithmic maps are essentially topographic/contour maps and offer an alternative approach to plotting geo-spatial data using choropleth maps. This is a particularly interesting approach for the US with its extreme population patterns.

Very impressive work. Read this post and then David’s original.

FYI:

Choropleth maps use city, county, etc. boundaries, within which colors appear.

Isarithmic maps use color to present the same information but without the legal boundaries that appear in choropleth maps.

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