This stacked bar chart is constructed from a CSV file storing the populations of different states by age group. The chart employs conventional margins and a number of D3 features:
This example doesn’t use d3.layout.stack because it’s easy to just stack each state independently via array.forEach. Here, it makes sense to group the rects by state (column), rather than grouping by age group (series), as you do with a stacked area chart.
xxxxxxxxxx<meta charset="utf-8"><style>body { font: 10px sans-serif;}.axis path,.axis line { fill: none; stroke: #000; shape-rendering: crispEdges;}.bar { fill: steelblue;}.x.axis path { display: none;}</style><body><script src="//d3js.org/d3.v3.min.js"></script><script>var margin = {top: 20, right: 20, bottom: 30, left: 40}, width = 960 - margin.left - margin.right, height = 500 - margin.top - margin.bottom;var x = d3.scale.ordinal() .rangeRoundBands([0, width], .1);var y = d3.scale.linear() .rangeRound([height, 0]);var color = d3.scale.ordinal() .range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);var xAxis = d3.svg.axis() .scale(x) .orient("bottom");var yAxis = d3.svg.axis() .scale(y) .orient("left") .tickFormat(d3.format(".2s"));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) { if (error) throw error; color.domain(d3.keys(data[0]).filter(function(key) { return key !== "State"; })); data.forEach(function(d) { var y0 = 0; d.ages = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; }); d.total = d.ages[d.ages.length - 1].y1; }); data.sort(function(a, b) { return b.total - a.total; }); x.domain(data.map(function(d) { return d.State; })); y.domain([0, d3.max(data, function(d) { return d.total; })]); svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + height + ")") .call(xAxis); svg.append("g") .attr("class", "y axis") .call(yAxis) .append("text") .attr("transform", "rotate(-90)") .attr("y", 6) .attr("dy", ".71em") .style("text-anchor", "end") .text("Population"); var state = svg.selectAll(".state") .data(data) .enter().append("g") .attr("class", "g") .attr("transform", function(d) { return "translate(" + x(d.State) + ",0)"; }); state.selectAll("rect") .data(function(d) { return d.ages; }) .enter().append("rect") .attr("width", x.rangeBand()) .attr("y", function(d) { return y(d.y1); }) .attr("height", function(d) { return y(d.y0) - y(d.y1); }) .style("fill", function(d) { return color(d.name); }); var legend = svg.selectAll(".legend") .data(color.domain().slice().reverse()) .enter().append("g") .attr("class", "legend") .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); legend.append("rect") .attr("x", width - 18) .attr("width", 18) .attr("height", 18) .style("fill", color); legend.append("text") .attr("x", width - 24) .attr("y", 9) .attr("dy", ".35em") .style("text-anchor", "end") .text(function(d) { return d; });});</script> https://d3js.org/d3.v3.min.js