D3 Examples - simple bar chat dataset

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    rect {
      fill: none;
      stroke: black;
      stroke-width: 1px;
    }
  </style>
</head>
​
<body>
  <script>
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500);
    // var data = [22, 32, 21, 23, 10, 22, 11, 19, 30, 50];
    
    // No domain (yet!)
    var x = d3.scaleLinear().range([0, 500]);
    var y = d3.scaleLinear().range([0, 100]);
    
    var g = svg.append("g").attr("transform", "translate(100, 0)");
    
    //chargement du jeu de données
        d3.text('dataset.csv', function(error, raw){
    
      console.log(raw);
      
        var dsv = d3.dsvFormat(';')
        var data = dsv.parse(raw);
    
      console.log(data);
      // Domain after data have been loaded!
      x.domain([0, data.length -1]);
      
      // Accessor for value, function called accessor, access values in data, searches max value in dataset
      y.domain([0, d3.max(data, function(d) { return d.value; })]);
      
      g.selectAll("text").data(data).enter().append("text")
        .text(function(d) { return d.name; })
        .attr("y", 200)
        .attr("x", function(d, i) { return x(i) + 20; })
        .style("font-size", 12)
        .style("font-family", "monospace");
      //pour chaque nouveau rectangle, on rajoute un rectangle
      g.selectAll("rect").data(data).enter().append("rect")
        .attr("y", function(d) {return 190 -y(d.value);})
        .attr("x", function(d,i) {return x(i) +5;})
        .attr("width",40)
        .attr("height", function(d) {return y(d.value);})
      
      //fonction pour animer ma représentation
      setInterval(function(){
        
        data.forEach(function(d){
          d.value = d.value * Math.random();
        })
        
        //data = data.concat({name: "XXX", value:10});
        y.domain([0, d3.max(data, function(d) { return d.value;})]);
        
        g.selectAll("rect").data(data)//.enter().append("rect")
            .transition().duration(100).delay(function(d,i){
          return i*(500/data.length);
        })
        .attr("y", function(d) {return 190 -y(d.value);})
        .attr("height", function(d) {return y(d.value);})
        
        
        
      },500)
    });
    
  </script>
</body>
​
    