The Margin Convention

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The Margin Convention

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Last edited Jul 29, 2021

Created on Jul 29, 2021

This example visualizes the top 10 countries by population in 2020 as horizontal bars. The chart uses the margin convention, arranging a 960 by 500 pixel SVG with a 20-pixel margin on each side. The code loads data from a CSV file using D3's `csv` utility, and then uses React state to manage the data asynchronously. Key D3 APIs include `scaleBand` for the categorical country axis, `scaleLinear` for the population axis, and `max` to compute the domain, with bars rendered as SVG `rect` elements within a transformed group.

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A program that loads in some data about CSS named colors using D3 utilities, and uses React state as a Radar Burst

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