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Last edited Apr 6, 2025

Created on Apr 6, 2025

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This interactive pie chart visualizes student mental health and academic data, letting the viewer examine the distribution of records across categories like stress levels, depression, relationship status, and grades. Selecting a different attribute from the dropdown redraws the chart based on precomputed counts from the CSV data. Built with D3 v7, the example uses `d3.csv`, `d3.rollup`, `d3.pie`, and `d3.arc` to generate SVG paths and labels, with hover interactions that expand a slice and trigger a tooltip. A categorical color scale, `d3.scaleOrdinal`, with the `d3.schemeTableau10` palette colors each segment.

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