Created
October 4, 2018 17:30
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Grouped bar chart
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| license: gpl-3.0 |
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| State | Team 1 F | Team 2 F | Team 3 F | Team 1 U | Team 2 U | Team 3 U | |
|---|---|---|---|---|---|---|---|
| CA | 270 | 449 | 215 | 44 | 21 | 127 | |
| TX | 202 | 327 | 142 | 32 | 14 | 20 | |
| NY | 120 | 214 | 105 | 21 | 10 | 12 | |
| FL | 114 | 193 | 925 | 19 | 92 | 11 | |
| IL | 894 | 155 | 725 | 15 | 72 | 89 | |
| PA | 737 | 134 | 679 | 13 | 67 | 73 |
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| <head> | |
| <meta charset ="utf-8"> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <style> | |
| body { | |
| padding-top: 45px; | |
| margin: auto; | |
| width: 650px; | |
| font: 14px arial; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg width="650" height="400"></svg> | |
| Choose type: | |
| <select id="options"></select> | |
| <input type="checkbox" id="sort"> | |
| Toggle sort | |
| <script> | |
| d3.csv("data.csv").then(d => chart(d)) | |
| function chart(data) { | |
| // | |
| // data/key value computations | |
| // | |
| var copy = []; | |
| var keys = data.columns.slice(1); | |
| keys.forEach(d => copy.push(d.split(' '))) | |
| var type = [...new Set(copy.map(d => d[2]))] | |
| var xMap = [...new Set(data.map(d => d.State))] | |
| var options = d3.select("#options").selectAll("option") | |
| .data(type) | |
| .enter().append("option") | |
| .attr("value", d => d) | |
| .text(d => "Type: " + d) | |
| // | |
| // append svg and axis | |
| // | |
| var svg = d3.select("svg"), | |
| margin = {top: 25, right: 20, bottom: 25, left: 30}, | |
| width = +svg.attr("width") - margin.left - margin.right, | |
| height = +svg.attr("height") - margin.top - margin.bottom; | |
| var x0 = d3.scaleBand() | |
| .rangeRound([margin.left, width - margin.right]) | |
| .paddingInner(.1) | |
| .paddingOuter(.1); | |
| var x1 = d3.scaleBand() | |
| .padding(0.05) | |
| var y = d3.scaleLinear() | |
| .rangeRound([height, margin.top]); | |
| var xAxis = svg.append("g") | |
| .attr("class", "x-axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| var yAxis = svg.append("g") | |
| .attr("class", "y-axis") | |
| .attr("transform", "translate(" + margin.left + ",0)") | |
| var teamColor = d3.scaleOrdinal() | |
| .range(["steelblue", "darkorange", "lightblue"]); | |
| update(d3.select("#options").property("value"), 0); | |
| function update(input, speed) { | |
| // | |
| // sort and filter data | |
| // | |
| var teams = keys.filter(f => f.includes(input)) | |
| data.forEach(function(d) { | |
| var sum = 0; | |
| for (var i = 0; i < teams.length; i++) { | |
| sum += +d[teams[i]] | |
| } | |
| d.total = sum; | |
| return d; | |
| }) | |
| data.sort(d3.select("#sort").property("checked") | |
| ? (a, b) => b.total - a.total | |
| : (a, b) => xMap.indexOf(a.State) - xMap.indexOf(b.State)) | |
| y.domain([0, d3.max(data, d => d.total)]).nice(); | |
| x0.domain(data.map(d => d.State)) | |
| x1.domain(teams).rangeRound([0, x0.bandwidth()]) | |
| // | |
| // append rectangles | |
| // | |
| var barGroups = svg.selectAll(".layer") | |
| .data(data, d => d.State); | |
| barGroups.exit().remove(); | |
| barGroups.enter().append("g") | |
| .classed('layer', true); | |
| svg.selectAll(".layer").transition().duration(speed) | |
| .attr("transform", d => "translate(" + x0(d.State) + ",0)") | |
| var bars = svg.selectAll(".layer").selectAll(".bars") | |
| .data(function(d) { | |
| return teams.map(function(key) { | |
| return {key: key, value: +d[key]}; | |
| }); | |
| }) | |
| bars.exit().remove() | |
| bars.enter().append("rect") | |
| .attr("class", "bars") | |
| .attr("fill", d => teamColor(d.key)) | |
| .merge(bars) | |
| .transition().duration(speed) | |
| .attr("width", x1.bandwidth()) | |
| .attr("x", d => x1(d.key)) | |
| .attr("y", d => y(d.value)) | |
| .attr("height", d => height - y(d.value)) | |
| var totalBars = svg.selectAll(".totalBars") | |
| .data(data, d => d.State) | |
| totalBars.exit().remove() | |
| totalBars.enter().append("rect") | |
| .attr("class", "totalBars") | |
| .attr("fill", "none") | |
| .attr("stroke", "#555") | |
| .attr("width", x0.bandwidth()) | |
| .merge(totalBars) | |
| .transition().duration(speed) | |
| .attr("x", d => x0(d.State)) | |
| .attr("y", d => y(d.total)) | |
| .attr("height", d => height - y(d.total)) | |
| // | |
| // call y & x axis | |
| // | |
| yAxis.transition().duration(speed) | |
| .call(d3.axisLeft(y).ticks(null, "s")) | |
| xAxis.transition().duration(speed) | |
| .call(d3.axisBottom(x0)); | |
| } | |
| var select = d3.select("#options") | |
| .style("border-radius", "5px") | |
| .style("padding", "1px 3px 1px 3px") | |
| .on("change", function() { | |
| update(this.value, 750) | |
| }) | |
| var checkbox = d3.select("#sort") | |
| .style("margin-left", "50%") | |
| .on("click", function() { | |
| update(select.property("value"), 750) | |
| }) | |
| } | |
| </script> | |
| </body> |
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