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SVG drawing
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var width = 640;var height = 480;var svg = d3.select("body") .append("svg") .attr("width", width) .attr("height", height);var dataset = [ 5, 10, 15, 20, 25 ];var circles = svg.selectAll("circle") .data(dataset) .enter() .append("circle");circles.attr("cx", function(d, i) { return (i * 50) + 25; }) .attr("cy", 100) .attr("r", function(d) { return d; });