Assignment 6
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This multi-series line chart visualizes yearly average global temperatures from 1948 to 2023, comparing maximum, mean, and minimum temperature trends using three colored lines (red, blue, and green). The visualization aggregates daily temperature records from a CSV file by year using d3.rollup, then renders the aggregated data as an SVG with d3.line and curveMonotoneX. Points are sampled every fifth year as markers, with axes implemented via d3.axisBottom and d3.axisLeft. A legend identifies each metric, and the chart includes axis labels and a descriptive title.
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