Task 3

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Last edited Oct 17, 2025

Created on Oct 17, 2025

This example shows a multi-series line chart comparing sales_A, sales_B, and sales_C over 20 time points, followed by a combined chart that overlays sales_A as bars on the left axis and sales_B as a line on the right axis. Both charts use D3 v7 with SVG rendering. The line chart applies d3.line, d3.scaleLinear, and d3.schemeCategory10 for color encoding, while the combined chart uses d3.scaleBand with axisLeft and axisRight for dual y-axes. Data is loaded from a local CSV file using d3.csv with d3.autoType.

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