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Reading - Grouped Bar Chart D3 V4
license: gpl-3.0

This grouped 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:

forked from mbostock's block: Grouped Bar Chart

State Pre-treatment Post Treatment
Seperation Anxiety 80 73
Generalised Anxiety 77 75
Panic 75 73
Socail pHOBIA 81 70
OCD 66 65
Depression 75 74
Total Anxiety 77 73
Total Anxiety & Depression 81 69
<!DOCTYPE html>
<style>
.axis .domain {
display: none;
}
body {
font-family: 'Droid Sans', sans-serif;
}
.axis {
font-size: 14px;
font-weight: bold;
}
text {
fill: #727075;
stroke: none;
}
.axis path,
.axis line {
fill: none;
stroke: none;
stroke-width: 2px;
shape-rendering: crispEdges;
}
.grid path {
stroke: none;
}
.grid line {
stroke: #E0E0E0;
shape-rendering: crispEdges;
}
.data-line {
fill: none;
stroke: #3C92BA;
stroke-width: 4px;
}
.data-circle {
fill: #3C92BA;
}
.axis-title {
text-anchor: end;
fill: #5D6971;
font-weight: normal;
}
.axis-tspan {
font-size: 12px;
}
.clinical-cut-off-line {
fill: none;
stroke: #333333;
stroke-dasharray: 8,8;
stroke-width: 4px;
}
.clinical-cut-off-text {
text-transform: uppercase;
text-anchor: start;
font-size: 12px;
font-weight: bold;
fill: #333333;
stroke: none
}
</style>
<link href="https://fonts.googleapis.com/css?family=Droid+Sans:400,700" rel="stylesheet">
<svg width="730" height="375"></svg>
<svg height="10" width="10" xmlns="http://www.w3.org/2000/svg" version="1.1"> <defs> <pattern id="diagonal-stripe-1" patternUnits="userSpaceOnUse" width="10" height="10"> <image xlink:href="data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxMCcgaGVpZ2h0PScxMCc+CiAgPHJlY3Qgd2lkdGg9JzEwJyBoZWlnaHQ9JzEwJyBmaWxsPSd3aGl0ZScvPgogIDxwYXRoIGQ9J00tMSwxIGwyLC0yCiAgICAgICAgICAgTTAsMTAgbDEwLC0xMAogICAgICAgICAgIE05LDExIGwyLC0yJyBzdHJva2U9J2JsYWNrJyBzdHJva2Utd2lkdGg9JzEnLz4KPC9zdmc+Cg==" x="0" y="0" width="10" height="10"> </image> </pattern> </defs> </svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var svg = d3.select("svg"),
margin = {top: 20, right: 20, bottom: 30, left: 40},
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom,
g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");
console.log(height)
var x0 = d3.scaleBand()
.rangeRound([0, width])
.paddingInner(0.2);
var x1 = d3.scaleBand()
.padding(0.05);
var y = d3.scaleLinear()
.rangeRound([(height / 1.4), 0]);
var z = d3.scaleOrdinal()
.range(["#37A3D6", "#FF9400"]);
var clinicalCutOffValue = 70;
d3.csv("data.csv", function(d, i, columns) {
for (var i = 1, n = columns.length; i < n; ++i) d[columns[i]] = +d[columns[i]];
return d;
}, function(error, data) {
if (error) throw error;
var keys = data.columns.slice(1);
x0.domain(data.map(function(d) { return d.State; }));
x1.domain(keys).rangeRound([0, x0.bandwidth()]);
y.domain([
(Math.floor(d3.min(data, function(d) { return d3.max(keys, function(key) { return d[key]; }); }) / 10) * 10),
(Math.ceil(d3.max(data, function(d) { return d3.max(keys, function(key) { return d[key]; }); }) / 10) * 10)
]);
// add the Y gridlines
g.append("g")
.attr("class", "grid")
.call(d3.axisLeft(y)
.tickSize(-width)
.tickFormat("")
.ticks(6)
);
var barG = g.append("g")
.selectAll("g")
.data(data)
.enter()
.append("g")
.attr("transform", function(d) { return "translate(" + x0(d.State) + ",0)"; });
barG.selectAll(".bars-container-back")
.data(function(d) { return keys.map(function(key) { return {key: key, value: d[key]}; }); })
.enter()
.append("rect")
.attr("class", "bars-container-back")
.attr("x", function(d) { return x1(d.key) - 4; })
.attr("y", function(d) { return y(d.value) - 4; })
.attr("width", x1.bandwidth() + 8)
.attr("height", function(d) { return (height / 1.4) - y(d.value) + 3; })
.attr("fill", "white")
.attr("stroke-width", "2px")
.attr("stroke", "transparent")
.attr("stroke-dasharray", "6,4")
.attr("shape-rendering", "crispEdges")
.transition()
.delay(500)
.duration(150)
.attr("stroke", "#727075");
barG.selectAll(".bars-container-middle")
.data(function(d) { return keys.map(function(key) { return {key: key, value: d[key]}; }); })
.enter()
.append("rect")
.attr("class", "bars-container-middle")
.attr("x", function(d) { return x1(d.key) - 3; })
.attr("y", function(d) { return y(d.value) - 1; })
.attr("width", x1.bandwidth() + 6)
.attr("height", function(d) { return (height / 1.4) - y(d.value) + 2; })
.attr("fill", "white")
.attr("stroke", "none");
barG.selectAll(".bars")
.data(function(d) { return keys.map(function(key) { return {key: key, value: d[key]}; }); })
.enter()
.append("rect")
.attr("class", "bars")
.attr("x", function(d) { return x1(d.key); })
.attr("width", x1.bandwidth())
.attr("fill", function(d) { return z(d.key); })
.attr("y", (height / 1.4))
.transition()
.delay(function (d,i){ return i * 250;}) // this is to do left then right bars
.duration(250)
.attr("y", function(d) { return y(d.value); })
.attr('height', function( d ) { return ((height / 1.4)) - y( d.value );});
g.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + (height / 1.4) + ")")
.call(d3.axisBottom(x0))
.selectAll("text")
.style("text-anchor", "end")
.attr("dx", "-.8em")
.attr("dy", ".15em")
.attr("transform", "rotate(-65)")
.text(function (d) {
if(d.length > 14) { return d.substring(0,14)+'...'; }
else { return d; }
});
g.append("g")
.attr("class", "axis")
.call(d3.axisLeft(y).ticks(6));
var legend = g.append("g")
.attr("font-family", "sans-serif")
.attr("font-size", 10)
.attr("text-anchor", "end")
.selectAll("g")
.data(keys.slice().reverse())
.enter()
.append("g")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 19)
.attr("width", 19)
.attr("height", 19)
.attr("fill", z);
legend.append("text")
.attr("x", width - 24)
.attr("y", 9.5)
.attr("dy", "0.32em")
.text(function(d) { return d; });
// Clinicial cut off line and text group
var clinicalCutOffLineAndText = g.append("g")
.attr("class", "clinical-cut-off-line-and-text")
// Clinicial cut off line
clinicalCutOffLineAndText.append("line")
.attr("class", "clinical-cut-off-line")
.attr("x1", 0)
.attr("y1", y(clinicalCutOffValue))
.attr("x2", width)
.attr("y2", y(clinicalCutOffValue));
// Clinicial cut off text
clinicalCutOffLineAndText.append("text")
.attr("class", "clinical-cut-off-text")
.attr("y", y(clinicalCutOffValue))
.attr("dy","20px")
.text("Clinical Cut-off");
});
</script>
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