histo

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    
.bar rect {
  fill: steelblue;
}
​
.bar text {
  fill: #fff;
  font: 10px sans-serif;
}
    
  </style>
</head>
​
<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
        var usv = d3.dsvFormat(
    

https://d3js.org/d3.v4.min.js