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The Margin Convention

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Fforcox43
Last edited Sep 4, 2020
Created on Sep 4, 2020

This example demonstrates the “margin convention” for bar charts, displaying the top 10 most populous countries in 2020. The visualization uses React to manage state and render SVG rectangles, while D3.js v6 handles data loading via `d3.csv` and scales for positioning. The chart applies explicit top, right, bottom, and left margins to define an inner plotting area, translating the SVG group accordingly. The data comes from a UN population CSV file, and the y-axis uses `scaleBand` for country labels, while `xScale` is a linear scale for population values.

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A program that loads and parses some CSV data: CSS Named Colors.

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