D3 Examples - pie chart

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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; }
  </style>
</head>
​
<body>
  <script>
    let module_data = {
            "N/A": 0.02763018065887354,
        "Disagree": 0.10839532412327312,
        "Neither Agree nor Disagree": 0.13177470775770456,
        "Agree": 0.7321997874601488
        };
    
    let columns = ["N/A", "Disagree", "Neither Agree nor Disagree", "Agree"];
    
    let width = 400;
    let height = 300;
    
    var margin = {
        top: 80,
      bottom: 80,
      left: 120,
      right: 120,
    };
    
    let svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
​
  </script>
</body>
​
    