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Last edited Mar 31, 2025

Created on Mar 31, 2025

This example presents a horizontal bar chart ranking the top 30 countries by 2020 population. The React-based visualization uses D3’s `scaleLinear` and `scaleBand` to map values and categories, with `axisBottom` and `axisLeft` rendering the axes. Data is loaded via `d3.csv` from a remote Gist, sorted by population, and rendered as SVG rectangles. The chart includes a clear axis label indicating population in millions, with the x-axis formatted using tick formatting to display values in that unit.

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Fork of Activity 6_Task 1

This example shows a horizontal bar chart of 2020 population estimates for 30 countries, ranked by country name. It uses React with D3 v5’s `scaleBand` and `scaleLinear` to map countries to bars and population values to bar widths, rendered as SVG `<rect>` elements with a `<title>` tooltip. The data is loaded via `d3.csv` from a GitHub gist, and axes are built custom components using D3’s tick generation.