tmcw/deviation_histogram.json

## deviation_histogram.json
{"0":115411,"2":54341,"4":21096,"6":6606,"8":3120,"10":2394,"12":1480,"14":1089,"16":899,"18":449,"20":203,"22":218,"24":371,"26":178,"28":186,"30":227,"32":838,"34":192,"36":105,"38":90,"-4":68330,"-6":44076,"-2":98821,"-8":27735,"-14":9803,"-12":13012,"-20":4115,"-18":4947,"-10":18875,"-16":7005,"-22":3394,"-30":1996,"-32":2259,"-34":1007,"-36":1989,"-38":1627,"-26":1888,"-24":2039,"-28":3194}

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
  margin:0;
  padding:0;
}

.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

.bar.ontime {
  fill:#ff7f0e;
}

.bar {
  fill: steelblue;
}

.x.axis path {
  display: none;
}

</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 20, right: 20, bottom: 30, left: 50},
    width = 640 - margin.left - margin.right,
    height = 200 - margin.top - margin.bottom;

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

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

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .ticks(5)
    .orient("left");

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.json("deviation_histogram.json", function(error, list) {
  var data = d3.entries(list).map(function(d) {
      d.value = +d.value;
      d.key = '' + d.key;
      return d;
  });

  // x.domain(data.map(function(d) { return d.key; }));
  x.domain(d3.range(-20, 20, 2));
  y.domain([0, d3.max(data, 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("Buses");
      console.log(x(50), x(0));

  svg.selectAll(".bar")
      .data(data)
    .enter().append("rect")
        .attr("class", 'bar')
        .classed('ontime', function(d) {
            return d.key == '0';
        })
      .attr("x", function(d) { return x(d.key); })
      .attr("width", x.rangeBand())
      .attr("y", function(d) { return y(d.value); })
      .attr("height", function(d) { return height - y(d.value); });
});

</script>
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font: 10px sans-serif;
	margin:0;
	padding:0;
	}

	.axis path,
	.axis line {
	fill: none;
	stroke: #000;
	shape-rendering: crispEdges;
	}

	.bar.ontime {
	fill:#ff7f0e;
	}

	.bar {
	fill: steelblue;
	}

	.x.axis path {
	display: none;
	}

	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>

	var margin = {top: 20, right: 20, bottom: 30, left: 50},
	width = 640 - margin.left - margin.right,
	height = 200 - margin.top - margin.bottom;

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

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

	var xAxis = d3.svg.axis()
	.scale(x)
	.orient("bottom");

	var yAxis = d3.svg.axis()
	.scale(y)
	.ticks(5)
	.orient("left");

	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.json("deviation_histogram.json", function(error, list) {
	var data = d3.entries(list).map(function(d) {
	d.value = +d.value;
	d.key = '' + d.key;
	return d;
	});

	// x.domain(data.map(function(d) { return d.key; }));
	x.domain(d3.range(-20, 20, 2));
	y.domain([0, d3.max(data, 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("Buses");
	console.log(x(50), x(0));

	svg.selectAll(".bar")
	.data(data)
	.enter().append("rect")
	.attr("class", 'bar')
	.classed('ontime', function(d) {
	return d.key == '0';
	})
	.attr("x", function(d) { return x(d.key); })
	.attr("width", x.rangeBand())
	.attr("y", function(d) { return y(d.value); })
	.attr("height", function(d) { return height - y(d.value); });
	});

	</script>