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Medical Insurance Bar Chart

✓ Published1🌍 Public
Jjojongo15342@gmail.com
Last edited Oct 2, 2025
Created on Oct 2, 2025
Forked from Simple Bar Chart

This grouped bar chart visualizes average medical insurance charges across four U.S. regions, broken down by the number of children covered. The chart uses d3.scaleBand for grouped positioning and d3.scaleLinear for the y-axis, with pastel colors distinguishing regions. Data is loaded from a CSV file and aggregated in JavaScript, while tooltips display exact values on hover. The visualization is built using d3.v7 within a React-compatible unidirectional data flow pattern via d3-rosetta's `one` and `createStateField` utilities.

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MIT Licensed

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