Homework 1.2

<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */

.bar { fill: steelblue; }

</style>
<body>
	
    	
<script src="//d3js.org/d3.v4.min.js"></script>
<script>

var margin = {top: 20, right: 20, bottom: 110, left: 60},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scaleBand()
          .range([0, width])
          .padding(0.1);
var y = d3.scaleLinear()
          .range([height, 0]);

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", 
          "translate(" + margin.left + "," + margin.top + ")");

// get the data
d3.csv("Homework1.2.csv", function(error, data) {
  if (error) throw error;

// format the data
  data.forEach(function(d) {
    d.District = d.District;
    d.numRecords = +d.numRecords;

});
  console.log(data);

x.domain(data.map(function(d) { return d.District; }));
  y.domain([0, d3.max(data, function(d) { return d.numRecords; })]);

svg.selectAll(".bar")
      .data(data)
    .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) { return x(d.District)+20; })
      .attr("width", 39)
      .attr("y", function(d) { return y(d.numRecords); })
      .attr("height", function(d) { return height - y(d.numRecords); });

// add the x Axis
  svg.append("g")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x))
		 .selectAll("text")	
     .style("text-anchor", "end")
        .attr("dx", "-0.87808em")
  .style("font-size", "11px") 
        .attr("dy", "-0.377856em")
           .attr("transform",  "rotate(-90)");
  // add the y Axis
  
  svg.append("g")
      .call(d3.axisLeft(y));
  
  svg.append("text")      // text label for the x axis
  			.attr("transform",  "rotate(-90)")
        .attr("x", -180 )
        .attr("y",  -45 )
        .style("text-anchor", "middle")
        .text("Number of Records");
  
  
svg.append("text")      // text label for the x axis
        .attr("x", 423 )
        .attr("y",  -8 )
        .style("text-anchor", "middle")
        .text("Pd District");
});

</script>
</body>

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