tianhuil/GroupVerticalBarGraph.html

## GroupVerticalBarGraph.html
<!DOCTYPE html>
<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="http://d3js.org/d3.v3.min.js"></script>
<script src="http://underscorejs.org/underscore.js"></script>
<script>

d3.csv("data.csv", function(error, data) {
  var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "State"; });

  data.forEach(function(d) {
    d.subgroups = ageNames.map(function(ageName) { return {subgroupLabel: ageName, value: +d[ageName]}; });
    d.groupLabel = d.State
  });

  verticalGroupedBarGraph(data, ageNames)
});

function verticalGroupedBarGraph(data) {
  var subgroupLabels = _.union.apply(this, _.map(data, function(d) {
    return _.map(d.subgroups, function(g) { return g.subgroupLabel; });
  }));

  var margin = {top: 20, right: 20, bottom: 30, left: 40},
      width = 960 - margin.left - margin.right,
      height = 500 - margin.top - margin.bottom;

  var x0 = d3.scale.ordinal()
      .rangeRoundBands([0, width], .1);

  var x1 = d3.scale.ordinal();

  var y = d3.scale.linear()
      .range([height, 0]);

  var color = d3.scale.ordinal()
      .range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);

  var xAxis = d3.svg.axis()
      .scale(x0)
      .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 + ")");


  x0.domain(data.map(function(d) { return d.groupLabel; }));
  x1.domain(subgroupLabels).rangeRoundBands([0, x0.rangeBand()]);
  y.domain([0, d3.max(data, function(d) { return d3.max(d.subgroups, function(d) { return d.value; }); })]);

  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(" + x0(d.groupLabel) + ",0)"; });

  state.selectAll("rect")
      .data(function(d) { return d.subgroups; })
    .enter().append("rect")
      .attr("width", x1.rangeBand())
      .attr("x", function(d) { return x1(d.subgroupLabel); })
      .attr("y", function(d) { return y(d.value); })
      .attr("height", function(d) { return height - y(d.value); })
      .style("fill", function(d) { return color(d.subgroupLabel); });

  var legend = svg.selectAll(".legend")
      .data(subgroupLabels.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>
	<!DOCTYPE html>
	<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="http://d3js.org/d3.v3.min.js"></script>
	<script src="http://underscorejs.org/underscore.js"></script>
	<script>

	d3.csv("data.csv", function(error, data) {
	var ageNames = d3.keys(data[0]).filter(function(key) { return key !== "State"; });

	data.forEach(function(d) {
	d.subgroups = ageNames.map(function(ageName) { return {subgroupLabel: ageName, value: +d[ageName]}; });
	d.groupLabel = d.State
	});

	verticalGroupedBarGraph(data, ageNames)
	});

	function verticalGroupedBarGraph(data) {
	var subgroupLabels = _.union.apply(this, _.map(data, function(d) {
	return _.map(d.subgroups, function(g) { return g.subgroupLabel; });
	}));

	var margin = {top: 20, right: 20, bottom: 30, left: 40},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var x0 = d3.scale.ordinal()
	.rangeRoundBands([0, width], .1);

	var x1 = d3.scale.ordinal();

	var y = d3.scale.linear()
	.range([height, 0]);

	var color = d3.scale.ordinal()
	.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);

	var xAxis = d3.svg.axis()
	.scale(x0)
	.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 + ")");


	x0.domain(data.map(function(d) { return d.groupLabel; }));
	x1.domain(subgroupLabels).rangeRoundBands([0, x0.rangeBand()]);
	y.domain([0, d3.max(data, function(d) { return d3.max(d.subgroups, function(d) { return d.value; }); })]);

	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(" + x0(d.groupLabel) + ",0)"; });

	state.selectAll("rect")
	.data(function(d) { return d.subgroups; })
	.enter().append("rect")
	.attr("width", x1.rangeBand())
	.attr("x", function(d) { return x1(d.subgroupLabel); })
	.attr("y", function(d) { return y(d.value); })
	.attr("height", function(d) { return height - y(d.value); })
	.style("fill", function(d) { return color(d.subgroupLabel); });

	var legend = svg.selectAll(".legend")
	.data(subgroupLabels.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>