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A9-World Chloropleth Map

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Jjrcuster@dons.usfca.edu
Last edited Apr 14, 2025
Created on Apr 14, 2025

This map of the United States overlays proportional symbols representing grocery costs by state, with red highlighting for the top ten most expensive states. Built with D3 v3, it uses an Albers USA projection and topojson for state boundaries, while circles are positioned by projecting state coordinates. Data from a CSV file drives the radius scale and tooltip interactions.

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