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Making a Bar Chart with D3

✓ Published3🌍 Public
AAloysius
Last edited Feb 23, 2020
Created on Feb 15, 2020

A bar chart displays population estimates for ten countries, with horizontal bars sorted by population size. The visualization uses D3 v5, loading data from a CSV file with `d3.csv` and scaling values with `d3.scaleLinear` and `d3.scaleBand`. Axes are generated using `d3.axisLeft` and `d3.axisBottom`, while bars are appended as SVG rectangles. The code converts population numbers to absolute counts before rendering, and the chart includes margins and a left-axis label area.

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Making a Bar Chart

A bar chart displays population estimates for ten countries from a CSV file, with horizontal bars sorted by country name. D3 v5 loads the data via `csv`, scales it with `scaleLinear` and `scaleBand`, and renders SVG rectangles. Axes are generated using `axisLeft` and `axisBottom`. The chart is drawn inside an SVG element with margins applied through a group transform.

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