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Activity 6

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NNithish Karanam
Last edited Apr 5, 2025
Created on Apr 5, 2025
Forked from Activity 7

This example shows the 2020 population for 30 countries as a horizontal bar chart built with React and D3 v5, rendered as SVG. The code uses `scaleBand` for the categorical y-axis, `scaleLinear` for the numeric x-axis, and `format('.2s')` to abbreviate tick labels (e.g., converting G to B). Data is loaded asynchronously from a remote CSV via D3’s `csv` method, with the axis and marks defined as reusable React components.

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This example presents a horizontal bar chart showing 2020 population data for 30 countries, with bars encoded by population magnitude and country names along the y-axis. Built with React and D3 v5, it uses `scaleBand` for the categorical axis, `scaleLinear` for the numeric axis, and renders SVG rectangles with tooltips via the `<title>` element. Data is loaded from a CSV using `d3.csv`, with population values transformed by multiplying the raw figures by 1,000. Axis labels and ticks are styled with CSS, and the chart includes formatted tick labels using `d3.format`.

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