D3 Examples - english-dept-gender

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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>
    // Feel free to change or delete any of the code you see in this editor!
    
    d3.csv('books.csv', function(err,data) {
      
      data = data.map(d => {
        d.id = d['Semester'] + '-' + d['Class Number'] + '-' + d['Section Number'];
        return d;
      });
      
      let chartData = d3.nest()
        .key(d => d.id)
        .entries(data)
        
      chartData = chartData.map(d =>{
        let genders = d.values.map(d => d['Gender']);
        d.numFemale = genders.filter(d => d == 'female').length;
        d.pctFemale = d.numFemale / genders.length;
        d.numberStudents = +d.values[0]['Number Students'];
        return d;
      });
      
      chartData = chartData.sort((a,b) => a.pctFemale - b.pctFemale);
      
      console.log(chartData);
      
      //console.log(chartData);
    });
    
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
    svg.append("text")
      .text("Edit the code below to change me!")
      .attr("y", 200)
      .attr("x", 120)
      .attr("font-size", 36)
      .attr("font-family", "monospace")
​
  </script>
</body>
​
    