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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<style> |
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body { |
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font: 10px sans-serif; |
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} |
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.axis path, |
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.axis line { |
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fill: none; |
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stroke: #000; |
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shape-rendering: crispEdges; |
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} |
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.bar { |
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fill: steelblue; |
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} |
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.x.axis path { |
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display: none; |
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} |
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</style> |
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<body> |
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<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> |
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<script src="https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.min.js"></script> |
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<script> |
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var margin = {top: 20, right: 20, bottom: 30, left: 40}, |
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width = 960 - margin.left - margin.right, |
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height = 500 - margin.top - margin.bottom; |
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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 color = 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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.tickFormat(d3.format(".2s")); |
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var svg = d3.select("body").append("svg") |
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.attr("width", width + margin.left + margin.right) |
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.attr("height", height + margin.top + margin.bottom) |
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.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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d3.csv("data.csv", function(error, data) { |
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if (error) throw error; |
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var ndx = crossfilter(data); |
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var stateAgeNames = ndx.dimension(function(d) { |
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return [d["State"], d["Age Range"]]; |
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}) |
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var stateAgeGroup = stateAgeNames.group().reduceSum(function(d) { |
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return d.Population; |
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}); |
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var stateAccessor = function(d) { |
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return d.key[0]; |
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} |
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var ageNameAccessor = function(d) { |
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return d.key[1]; |
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} |
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var populationAccessor = function(d) { |
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return d.value; |
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} |
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var filteredData = stateAgeGroup.all(); |
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console.log('filteredData', filteredData); |
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var ageNames = d3.set(filteredData.map(ageNameAccessor)).values() |
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var states = d3.set(filteredData.map(stateAccessor)).values() |
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var maxPopulation = d3.max(filteredData.map(populationAccessor)); |
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console.log(maxPopulation) |
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x0.domain(states); |
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x1.domain(ageNames).rangeRoundBands([0, x0.rangeBand()]); |
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y.domain([0, maxPopulation]); |
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var nestedData = d3.nest() |
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.key(stateAccessor) |
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.key(ageNameAccessor) |
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.rollup(function(d) { |
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return {"value": populationAccessor(d[0])}; |
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}) |
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.entries(filteredData) |
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svg.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height + ")") |
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.call(xAxis); |
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svg.append("g") |
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.attr("class", "y axis") |
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.call(yAxis) |
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.append("text") |
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.attr("transform", "rotate(-90)") |
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.attr("y", 6) |
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.attr("dy", ".71em") |
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.style("text-anchor", "end") |
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.text("Population"); |
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var state = svg.selectAll(".state") |
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.data(nestedData) |
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.enter().append("g") |
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.attr("class", "g") |
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.attr("transform", function(d) { return "translate(" + x0(d.key) + ",0)"; }); |
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state.selectAll("rect") |
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.data(function(d) { return d.values } ) |
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.enter().append("rect") |
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.attr("width", x1.rangeBand()) |
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.attr("x", function(d) { console.log((d.values.value)); return x1( d.key ); }) |
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.attr("y", function(d) { return y(d.values.value); }) |
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.attr("height", function(d) { return height - y(d.values.value); }) |
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.style("fill", function(d) { return color(d.key); }); |
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var legend = svg.selectAll(".legend") |
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.data(ageNames.slice().reverse()) |
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.enter().append("g") |
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.attr("class", "legend") |
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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 - 18) |
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.attr("width", 18) |
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.attr("height", 18) |
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.style("fill", color); |
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legend.append("text") |
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.attr("x", width - 24) |
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.attr("y", 9) |
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.attr("dy", ".35em") |
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.style("text-anchor", "end") |
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.text(function(d) { return d; }); |
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}); |
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</script> |
