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<!DOCTYPE html> |
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<style> |
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</style> |
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<svg width="960" height="500"></svg> |
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<script src="https://d3js.org/d3.v3.min.js"></script> |
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<script src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.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: 40}, |
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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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g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var x0 = d3.scale.ordinal() |
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.rangeRoundBands([0, width], .1); |
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var x1 = d3.scale.ordinal(); |
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var y = d3.scale.linear() |
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.range([height, 0]); |
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var z = d3.scale.ordinal() |
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.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); |
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var xAxis = d3.svg.axis() |
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.scale(x0) |
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.orient("bottom"); |
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var yAxis = d3.svg.axis() |
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.scale(y) |
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.orient("left") |
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.ticks(null, "s") |
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.tickFormat(d3.format(".2s")); |
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d3.csv("data.csv", function(d, i, columns) { |
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d['Population'] = +d['Population']; |
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return d; |
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}, function(error, data) { |
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if (error) throw error; |
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var cf = crossfilter(data); |
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var dimension = cf.dimension(function (d) { return d['State']; }); |
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var group = dimension.group().reduce( |
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function (p, v) { |
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p[v['Category']] = (p[v['Category']] || 0) + v['Population']; |
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return p; |
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}, |
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function (p, v) { |
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p[v['Category']] = (p[v['Category']] || 0) - v['Population']; |
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return p; |
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}, |
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function () { |
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return {}; |
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} |
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); |
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var groupedData = group.all(); |
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//get all stacks |
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/* |
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var stackSet = new Set(); |
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data.forEach(function (d) { stackSet.add(d['Category']); }); |
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var stacks = []; |
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stackSet.forEach(function (s) { stacks.push(s); }); |
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stacks.sort(); |
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*/ |
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var stacks = [ 'Under 5 Years', |
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'5 to 13 Years', |
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'14 to 17 Years', |
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'18 to 24 Years', |
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'25 to 44 Years', |
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'45 to 64 Years', |
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'65 Years and Over' ]; |
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x0.domain(data.map(function(d) { return d['State']; })); |
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x1.domain(stacks).rangeRoundBands([0, x0.rangeBand()]); |
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y.domain([0, d3.max(data, function(d) { return d['Population']; })]).nice(); |
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g.append("g") |
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.selectAll("g") |
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.data(groupedData) |
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.enter().append("g") |
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.attr("transform", function(d) { return "translate(" + x0(d.key) + ",0)"; }) |
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.selectAll("rect") |
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.data(function(d) { return stacks.map(function(key) { return {key: key, value: d.value[key]}; }); }) |
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.enter().append("rect") |
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.attr("x", function(d) { return x1(d.key); }) |
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.attr("y", function(d) { return y(d.value); }) |
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.attr("width", x1.rangeBand()) |
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.attr("height", function(d) { return height - y(d.value); }) |
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.attr("fill", function(d) { return z(d.key); }); |
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var xAxisGraph = g.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height + ")") |
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.style({'stroke': '#000', 'fill': 'none','stroke-width': '1px'}) |
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.call(xAxis); |
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xAxisGraph |
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.selectAll("text") |
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.attr("font-size", 10); |
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var yAxisGraph = g.append("g") |
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.attr("class", "y axis") |
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.style({'stroke': '#000', 'fill': 'none','stroke-width': '1px'}) |
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.call(yAxis); |
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yAxisGraph |
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.selectAll("text") |
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.attr("font-size", 10); |
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yAxisGraph |
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.append("text") |
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.attr("x", 2) |
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.attr("y", y(y.ticks().pop()) + 0.5) |
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.attr("dy", "0.32em") |
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.attr("fill", "#000") |
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.attr("font-size", 10) |
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.attr("text-anchor", "start") |
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.text("Population"); |
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var legend = g.append("g") |
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.attr("font-family", "sans-serif") |
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.attr("font-size", 10) |
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.attr("font-weight", "bold") |
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.attr("text-anchor", "end") |
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.selectAll("g") |
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.data(stacks.slice().reverse()) |
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.enter().append("g") |
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.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); |
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legend.append("rect") |
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.attr("x", width - 19) |
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.attr("width", 19) |
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.attr("height", 19) |
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.attr("fill", z); |
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legend.append("text") |
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.attr("x", width - 24) |
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.attr("y", 9.5) |
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.attr("dy", "0.32em") |
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.text(function(d) { return d; }); |
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}); |
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</script> |