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Question 4: Area Chart

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Sshreshnaanugu@gmail.com
Last edited Oct 27, 2025
Created on Oct 27, 2025

This area chart visualizes monthly revenue trends across multiple products, with each product represented as a colored filled region that can be hovered to adjust opacity. The chart uses D3 v7 to load CSV data via `d3.csv`, aggregates revenue by product and month using `d3.group` and `d3.rollup`, and renders the areas with `d3.area` alongside scaled point-based x-axes (`d3.scalePoint`) and linear y-axes (`d3.scaleLinear`). Interactive dots respond to mouse hover by increasing their radius, and gridlines provide reference for revenue values.

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Question 3: Line Chart

This line chart displays monthly revenue trends for multiple products, with each product represented by a colored line and interactive dots. The visualization uses D3 v7 to load CSV data from a GitHub gist, aggregate revenue by month and product name, and render an SVG chart with a categorical color scale, gridlines, and hover effects that increase stroke width and dot radius. The chart is presented on a gradient background within a styled card container, with a legend and axis labels.

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Question 1: Bar Chart

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