Basic Bar Chart by wboykinm

index.html

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

.bar {
  fill: #9bd2ce;
}

.bar:hover {
  fill: #49ada6;
}

.axis {
  font: 8px sans-serif;
}

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

.x.axis path {
  display: none;
}

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

var margin = {top: 10, right: 10, bottom: 15, left: 20},
    width = 380 - margin.left - margin.right,
    height = 80 - 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 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", type, function(error, data) {
  x.domain(data.map(function(d) { return d.max; }));
  y.domain([0, d3.max(data, function(d) { return d.freq; })]);

  var fullSet = data.map(function(d) { return d.max; });
 
  xAxis.tickValues([fullSet[1], fullSet[7], fullSet[13], fullSet[19]]);

  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

  svg.selectAll(".bar")
      .data(data)
    .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) { return x(d.max); })
      .attr("width", x.rangeBand())
      .attr("y", function(d) { return y(d.freq); })
      .attr("height", function(d) { return height - y(d.freq); });
});

function type(d) {
  d.freq = +d.freq;
  return d;
}

</script>
</body>

data.csv

bin,min,max,freq
1,0,25243,76
2,25243,32686,111
3,32686,32852,48
4,32852,38045,65
5,38045,38523,26
6,38523,40841,21
7,40841,44421,135
8,44421,45833,80
9,45833,50278,162
10,50278,53592,308
11,53592,55859,183
12,55859,56190,80
13,56190,57981,192
14,57981,63438,412
15,63438,69000,371
16,69000,71250,110
17,71250,78935,696
18,78935,88056,458
19,88056,96974,215
20,96974,134453,699