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Making a Bar Chart

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Yyubeichen0826
Last edited Aug 15, 2020
Created on Aug 9, 2020

This example displays a horizontal bar chart of population figures for the world’s most populous countries, with each bar’s length proportional to its population value. The visualization uses D3 v5’s `scaleLinear` and `scaleBand` to map data to pixel coordinates, while `axisLeft` and `axisBottom` render the country labels and numeric scale. Data is loaded from a CSV file via `d3.csv` and rendered as SVG rectangles with a fixed steel-blue fill, using the `selectAll` data-join pattern to bind and append elements.

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