Activity6_Task1

Last edited Apr 1, 2025

Created on Apr 1, 2025

This horizontal bar chart displays the top 30 most populous countries in 2020, sorted in descending order with population values formatted in millions along the x-axis. The visualization uses React with D3 v7 scales and SVG rendering, fetching its CSV data from a GitHub repository with fallback sample data if the request fails. Bars are rendered as SVG rectangles using the `scaleBand` for country positioning and `scaleLinear` for population values, with axis components built through custom React functions for ticks and labels.

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Activity 6_Task 1

This example visualizes the top 30 most populous countries in 2020 using a horizontal bar chart, with each bar’s length encoding population size. The chart is built with React and D3 v7, using `d3.scaleLinear` for the x-axis and `d3.scaleBand` for the y-axis categories. Population data is fetched from a CSV hosted in a GitHub gist, with a hardcoded fallback dataset in case the request fails. The visualization renders as SVG, with custom React components for the axes and marks, and includes styled hover effects and axis labels.

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Hharinihari6791@gmail.com

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