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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<svg width="960" height="500"></svg> |
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<script src="//d3js.org/d3.v4.min.js"></script> |
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<script> |
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var svg = d3.select("svg"), |
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margin = {top: 20, right: 20, bottom: 30, left: 50}, |
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width = svg.attr("width") - margin.left - margin.right, |
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height = svg.attr("height") - margin.top - margin.bottom; |
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var parseDate = d3.timeParse("%Y %b %d"); |
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var x = d3.scaleTime().range([0, width]), |
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y = d3.scaleLinear().range([height, 0]), |
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z = d3.scaleOrdinal(d3.schemeCategory10); |
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var stack = d3.stack(); |
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var area = d3.area() |
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.x(function(d, i) { return x(d.data.date); }) |
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.y0(function(d) { return y(d[0]); }) |
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.y1(function(d) { return y(d[1]); }); |
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var g = svg.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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d3.tsv("data.tsv", type, function(error, data) { |
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if (error) throw error; |
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var keys = data.columns.slice(1); |
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x.domain(d3.extent(data, function(d) { return d.date; })); |
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z.domain(keys); |
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stack.keys(keys); |
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var layer = g.selectAll(".layer") |
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.data(stack(data)) |
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.enter().append("g") |
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.attr("class", "layer"); |
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layer.append("path") |
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.attr("class", "area") |
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.style("fill", function(d) { return z(d.key); }) |
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.attr("d", area); |
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layer.filter(function(d) { return d[d.length - 1][1] - d[d.length - 1][0] > 0.01; }) |
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.append("text") |
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.attr("x", width - 6) |
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.attr("y", function(d) { return y((d[d.length - 1][0] + d[d.length - 1][1]) / 2); }) |
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.attr("dy", ".35em") |
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.style("font", "10px sans-serif") |
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.style("text-anchor", "end") |
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.text(function(d) { return d.key; }); |
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g.append("g") |
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.attr("class", "axis axis--x") |
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.attr("transform", "translate(0," + height + ")") |
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.call(d3.axisBottom(x)); |
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g.append("g") |
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.attr("class", "axis axis--y") |
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.call(d3.axisLeft(y).ticks(10, "%")); |
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}); |
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function type(d, i, columns) { |
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d.date = parseDate(d.date); |
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for (var i = 1, n = columns.length; i < n; ++i) d[columns[i]] = d[columns[i]] / 100; |
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return d; |
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} |
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</script> |