D3 Grouped Bar Chart with JSON data

D3 Grouped Bar Chart with json data

by Khadeer Mohammed

HTML

<script src="//d3js.org/d3.v3.min.js"></script>
<h2>D3 grouped bar chart with json data</h2>

JavaScript

var data = [
  {
    "Groups": "A170",
    "Level 1": 1,
    "Level 2": 22,
    "Level 3": 22,
    "Level 4": 1
  },
  {
    "Groups": "A220",
    "Level 1": 2,
    "Level 2": 1,
    "Level 3": 1,
    "Level 4": 1
  },
  {
    "Groups": "A240",
    "Level 1": 6,
    "Level 2": 11,
    "Level 3": 18,
    "Level 4": 13
  },
  {
    "Groups": "A250",
    "Level 1": 1,
    "Level 2": 1,
    "Level 3": 1,
    "Level 4": 1
  },
  {
    "Groups": "A260",
    "Level 1": 1,
    "Level 2": 1,
    "Level 3": 1,
    "Level 4": 1
  },
  {
    "Groups": "A270",
    "Level 1": 3,
    "Level 2": 3,
    "Level 3": 10,
    "Level 4": 29
  },
  {
    "Groups": "B431",
    "Level 1": 10,
    "Level 2": 10,
    "Level 3": 0,
    "Level 4": 0
  },
  {
    "Groups": "E200",
    "Level 1": 23,
    "Level 2": 4,
    "Level 3": 0,
    "Level 4": 0
  },
  {
    "Groups": "B430",
    "Level 1": 5,
    "Level 2": 0,
    "Level 3": 0,
    "Level 4": 5
  },
  {
    "Groups": "F230",
    "Level 1": 12,
    "Level 2": 3,
    "Level 3": 3,
    "Level 4": 24
  },
  {
    "Groups": "B441",
    "Level 1": 12,
    "Level 2": 0,
    "Level 3": 0,
    "Level 4": 0
  },
  {
    "Groups": "A230",
    "Level 1": 0,
    "Level 2": 1,
    "Level 3": 1,
    "Level 4": 1
  },
  {
    "Groups": "D220",
    "Level 1": 0,
    "Level 2": 19,
    "Level 3": 19,
    "Level 4": 0
  }
]

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(["#C4F0FF", "#E8D1FF" , "#FFC4C4", "#F6FFC4"]);

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 +...