Example of stacked area charts --based off of this gist -- addressing this SO question.
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D3 Stacked Area Chart Example
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| date | Kermit | piggy | Gonzo | fuzzy | hogthrob | animal | floyd | Gabriel | Beaker | scooter | statler | waldorf | slim | sam | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13-Oct-31 | 113.44 | 435.15 | 19.57 | 60.55 | 53.02 | 268.28 | 87.34 | 1.98 | 0 | 31.68 | 0 | 21.59 | 4.82 | 11.31 | |
| 13-Nov-30 | 109.86 | 506.85 | 18.97 | 58.77 | 388.37 | 131.48 | 85.34 | 1.98 | 0 | 48.50 | 0 | 21.59 | 4.70 | 11.31 | |
| 13-Dec-31 | 113.46 | 644.88 | 19.57 | 60.57 | 669.47 | 0 | 87.46 | 1.98 | 0 | 80.97 | 0 | 21.59 | 4.82 | 11.43 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .browser text { | |
| text-anchor: end; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var parseDate = d3.time.format("%y-%b-%d").parse; | |
| //formatPercent = d3.format(".0%"); | |
| var x = d3.time.scale() | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var color = d3.scale.category20(); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left") | |
| //.tickFormat(formatPercent); | |
| var area = d3.svg.area() | |
| .x(function(d) { return x(d.date); }) | |
| .y0(function(d) { return y(d.y0); }) | |
| .y1(function(d) { return y(d.y0 + d.y); }); | |
| var stack = d3.layout.stack() | |
| .values(function(d) { return d.values; }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| d3.csv("data.csv", function(error, data) { | |
| color.domain(d3.keys(data[0]).filter(function(key) { return key !== "date"; })); | |
| data.forEach(function(d) { | |
| d.date = parseDate(d.date); | |
| }); | |
| var browsers = stack(color.domain().map(function(name) { | |
| return { | |
| name: name, | |
| values: data.map(function(d) { | |
| return {date: d.date, y: d[name] * 1}; | |
| }) | |
| }; | |
| })); | |
| // Find the value of the day with highest total value | |
| var maxDateVal = d3.max(data, function(d){ | |
| var vals = d3.keys(d).map(function(key){ return key !== "date" ? d[key] : 0 }); | |
| return d3.sum(vals); | |
| }); | |
| // Set domains for axes | |
| x.domain(d3.extent(data, function(d) { return d.date; })); | |
| y.domain([0, maxDateVal]) | |
| var browser = svg.selectAll(".browser") | |
| .data(browsers) | |
| .enter().append("g") | |
| .attr("class", "browser"); | |
| browser.append("path") | |
| .attr("class", "area") | |
| .attr("d", function(d) { return area(d.values); }) | |
| .style("fill", function(d) { return color(d.name); }); | |
| browser.append("text") | |
| .datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; }) | |
| .attr("transform", function(d) { return "translate(" + x(d.value.date) + "," + y(d.value.y0 + d.value.y / 2) + ")"; }) | |
| .attr("x", -6) | |
| .attr("dy", ".35em") | |
| .text(function(d) { return d.name; }); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis); | |
| }); | |
| </script> |
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