helloWorldD3.html

<!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>
  <div id="buttonContainer">
		<button id="sortAscending">Sort Ascending</button>
		<button id="sortDescending">Sort Descending</button>
	</div>
  <script>
    
    var width = 960;
    var height = 500;

var x = d3.scaleLinear()
    					.range([0, width]);

var y = d3.scaleLinear()
    					.range([height, 0]);
    
    d3.csv("alpha_frequencies.csv", function(error, dataset) {console.log(dataset);

dataset.forEach(function(d) {
      d.frequency = +d.frequency; //parseFloat(d.frequency)
      });
                                                              
    var max_frequency = d3.max(dataset, function(d){return d.frequency;})                                     
    x.domain([0,max_frequency]);             
      
      dataset.sort(function(a, b) { 
        return b.frequency - a.frequency;
                                  });
                                                              
      var chart = d3.select("body")
                    .append("svg")
                    .attr("width", width)
                    .attr("height", height);
                                                              
      var rects = chart.selectAll("rect")
              .data(dataset);

rects.enter()                                                           
  .append("rect")
 	.attr("width", function(d) { return x (d.frequency); })
	.attr("y", function(d, i) { return i * 20})
  .attr("height", 18);
                                                             
});

</script>
</body>

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