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Making a Bar Chart

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Vvasukipriyam
Last edited Apr 23, 2019
Created on Apr 23, 2019
Forked from Making a Bar Chart

A bar chart displays the populations of the top 10 most populous countries from a 2018 United Nations estimate. Using d3.csv, the data is parsed, and d3.scaleLinear and d3.scaleBand map population values and country names to the SVG canvas. Axes are rendered with d3.axisLeft and d3.axisBottom. Animated transitions update bar heights when the cereal dataset is selected via a dropdown, demonstrating reusable chart components with d3 v5.

AI-generated description

This bar chart shows population of the top 10 most populous countries. The data comes from the year 2018 estimate in United Nations: World Population Prospects 2017.

MIT Licensed

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Making a Bar Chart

This example shows a horizontal bar chart for the top 10 most populous countries, using population estimates from the 2018 United Nations World Population Prospects. It renders as an SVG, with bars drawn as rectangles whose lengths encode population values. The code uses D3 v3 APIs such as `d3.csv` to load the data, `d3.scale.linear()` and `d3.scale.ordinal()` for the axes, and `d3.svg.axis()` to draw them. A dropdown menu lets users select a cereal brand, triggering an animated transition that updates the bar heights and rescales the y-axis domain.

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