Making a Bar Chart!

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Making a Bar Chart!

✓ Published1🌍 Public

Last edited Nov 3, 2020

Created on Nov 3, 2020

This example shows a horizontal bar chart of country populations using a dataset loaded from a CSV file. The chart maps population values to bar widths with `d3.scaleLinear` and country names to vertical bands with `d3.scaleBand`, rendering SVG rectangles. Axes are added using `d3.axisLeft` and `d3.axisBottom`, while the code imports these functions from D3 v6 and handles the data with `d3.csv`. Population values are multiplied by 1,000 on load, and the chart is styled with a simple CSS rule for blue bars.

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A bare minimum HTML page demonstrating use of CSS and JavaScript.

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Making a Bar Chart!

This example displays a horizontal bar chart of country populations, with values read from a CSV file and scaled by 1,000. Using D3 v5, it employs `d3.csv` to load the data, `scaleLinear` and `scaleBand` to map population and country names to positions, and `axisLeft` and `axisBottom` to render axes. Rectangles are appended to an SVG group with margins, sized by the scales, and styled with a steelblue fill.

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