Example of slider
A slider controls a dynamic scatterplot of 20 points, each representing a year from 2000 to 2020, with x and y positions generated randomly. The visualization shows how point positions change across years as the user drags the range input. The code uses D3.js v4 to bind data, create SVG circles, and update them via a transition. The slider’s input event triggers a filter on the pre-generated dataset, updating the circles’ coordinates and the displayed year label. Axes are rendered using d3.axisBottom and d3.axisLeft, with color mapping via d3.scaleOrdinal.
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