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September 23, 2017 17:32
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| license: mit |
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| age | population | |
|---|---|---|
| <5 | 2704659 | |
| 5-13 | 4499890 | |
| 14-17 | 2159981 | |
| 18-24 | 3853788 | |
| 25-44 | 14106543 | |
| 45-64 | 8819342 | |
| ≥65 | 612463 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .arc text { | |
| font: 10px sans-serif; | |
| text-anchor: middle; | |
| } | |
| .arc path { | |
| stroke: #fff; | |
| } | |
| </style> | |
| <svg width="960" height="500"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var svg = d3.select("svg"), | |
| width = +svg.attr("width"), | |
| height = +svg.attr("height"), | |
| radius = Math.min(width, height) / 2, | |
| g = svg.append("g").attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| var color = d3.scaleOrdinal(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); | |
| var pie = d3.pie() | |
| .sort(null) | |
| .value(function(d) { return d.population; }); | |
| var path = d3.arc() | |
| .outerRadius(radius - 10) | |
| .innerRadius(0); | |
| var label = d3.arc() | |
| .outerRadius(radius - 40) | |
| .innerRadius(radius - 40); | |
| d3.csv("data.csv", function(d) { | |
| d.population = +d.population; | |
| return d; | |
| }, function(error, data) { | |
| if (error) throw error; | |
| var arc = g.selectAll(".arc") | |
| .data(pie(data)) | |
| .enter().append("g") | |
| .attr("class", "arc"); | |
| arc.append("path") | |
| .attr("d", path) | |
| .attr("fill", function(d) { return color(d.data.age); }); | |
| arc.append("text") | |
| .attr("transform", function(d) { return "translate(" + label.centroid(d) + ")"; }) | |
| .attr("dy", "0.35em") | |
| .text(function(d) { return d.data.age; }); | |
| }); | |
| </script> |
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