D3 Examples - 5 cities temperature

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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; }
    svg  { width: 100%; height: 100%;}
  </style>
</head>
​
<body>
  <svg />
  <script>
    var margin = {top:20, bottom:20, left:20, right:20};
    
    d3.csv("cities.csv",(error, data) => {
      if (error) {
        console.log("Error: ", error)
      } else {
        dataViz(data)
      }
    });
    
    function dataViz(incomingData) {
    var maxPopulation = d3.max(incomingData, d => parseInt(d.population))
    var yScale = d3.scaleLinear().domain([0,maxPopulation]).range([margin.bottom,460 - margin.top]);
    
    d3.select("svg").attr("style","height: 480px; width: 600px;");
    d3.select("svg")
      .selectAll("rect")
      .data(incomingData)
      .enter()
      .append("rect")
      .attr("width", 50)
      .attr("height", d => yScale(parseInt(d.population)))
      .attr("x", (d,i) => margin.left + i * 55)
      .attr("y", d => 480 - margin.top - yScale(parseInt(d.population)))
      .style("fill", "#6E9922")
      .style("stroke", "#9A8B7A")
      .style("stroke-width", "1px");  
    };
  </script>
</body>
​
    