D3 Examples - Tables 2A and 2J

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<!DOCTYPE html>
<meta charset="utf-8">
<style> /* set the CSS */
​
.bar { fill: steelblue; }
.axis text {
                font-family: sans-serif;
                font-size: 11px;
            }
​
</style>
<body>
    
<!-- load the d3.js library -->     
<script src="//d3js.org/d3.v4.min.js"></script>
<script>
  function a()
{ 
   padding = -100;
​
// set the dimensions and margins of the graph
var margin = {top: 40, right: 20, bottom: 40, left: 70},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
// set the ranges
var x = d3.scaleBand()
          .range([0, width])
          .padding(0.1);
var y = d3.scaleLinear()
          .range([height, 0]);
          
// append the svg object to the body of the page
// append a 'group' element to 'svg'
// moves the 'group' element to the top left margin
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("Table2A.csv", function(error, data) {
  if (error) throw error;
​
  // Scale the range of the data in the domains
  x.domain(data.map(function(d) { return d.HighestLevelCompleted; }));
  y.domain([0, d3.max(data, function(d) { return d.NumberOfPeople; })]);
​
  // append the rectangles for the bar chart
  svg.selectAll(".bar")
      .data(data)
    .enter().append("rect")
      .attr("class", "bar")
      .attr("x", function(d) { return x(d.HighestLevelCompleted); })
      .attr("width", x.bandwidth())
      .attr("y", function(d) { return y(d.NumberOfPeople); })
      .attr("height", function(d) { return height - y(d.NumberOfPeople); });
​
  // add the x Axis
  svg.append("g")
      .attr("transform", "translate(0," + height + ")")
      .call(d3.axisBottom(x));
​
  // add the y Axis
  svg.append("g")
      .call(d3.axisLeft(y));
  
    svg.append("text")
            .attr("text-anchor", "middle")  // this makes it easy to centre the text as the transform is applied to the anchor
            .attr("transform", "translate("+ (padding/2) +","+(height/2)+")rotate(-90)")  // text is drawn off the screen top left, move down and out and rotate
            .text("Number of people");
  
  svg.append("text")
            .attr("text-anchor", "middle")  // this makes it easy to centre the text as the transform is applied to the anchor
            .attr("transform", "translate("+ (width/2) +","+(height-(padding/3))+")")  // centre below axis
            .text("Highest level completed");
  
  svg.append("text")
        .attr("x", (width / 2))             
        .attr("y", 0 - (margin.top / 2))
        .attr("text-anchor", "middle")  
        .style("font-size", "16px") 
        .style("text-decoration", "underline")  
        .text("Highest Level of Education Completed vs. Number of People 2009");
  });
}
​
  a();
  
  function b()
  {
    var margin = {top: 100, right: 20, bottom: 110, left: 70},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;
​
var x = d3.scaleLinear().range([0, width]),
    y = d3.scaleLinear().range([height, 0]);
​
var xAxis = d3.axisBottom(x),
    yAxis = d3.axisLeft(y);
​
var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom);
​
svg.append("defs").append("clipPath")
    .attr("id", "clip")
  .append("rect")
    .attr("width", width)
    .attr("height", height);
​
var focus = svg.append("g")
    .attr("class", "focus")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
    
   var cValue = function(d) { return d.HighestLevelCompleted;},
    color = d3.scaleOrdinal(d3.schemeCategory10);
​
d3.csv("Table2A.csv", function(error, data) {
  if (error) throw error;
​
  x.domain(d3.extent(data, function(d) { return d.MonthsWorked; }));
  y.domain([0, d3.max(data, function(d) { return d.TotalIncome$; })]);
  
// append scatter plot to main chart area 
 var dots = focus.append("g");
    dots.attr("clip-path", "url(#clip)");
    dots.selectAll("dot")
        .data(data)
        .enter().append("circle")
        .attr('class', 'dot')
        .attr("r",10)
        .style("opacity", .5)
        .style("fill", function(d) { return color(cValue(d));})
        .attr("cx", function(d) { return x(d.MonthsWorked); })
        .attr("cy", function(d) { return y(d.TotalIncome$); })
        
focus.append("g")
      .attr("class", "axis axis--x")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);
​
focus.append("g")
      .attr("class", "axis axis--y")
      .call(yAxis);
      
focus.append("text")
     .attr("transform", "rotate(-90)")
     .attr("y", 0 - margin.left)
     .attr("x",0 - (height / 2))
     .attr("dy", "1em")
     .style("text-anchor", "middle")
     .text("Total Income ($)");  
      
svg.append("text")             
      .attr("transform",
            "translate(" + ((width + margin.right + margin.left)/2) + " ," + 
                           (height + margin.top + 50) + ")")
      .style("text-anchor", "middle")
      .text("Months Worked");
  
  svg.append("text")
        .attr("x", ((width+100) / 2))             
        .attr("y", 120 - (margin.top / 2))
        .attr("text-anchor", "middle")  
        .style("font-size", "16px") 
        .style("text-decoration", "underline")  
        .text("Months Worked vs. Total Income ($) 2009");
  
  // draw legend
  var legend = svg.selectAll(".legend")
      .data(color.domain())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(-70," + i * 20 + ")"; });
​
  // draw legend colored rectangles
  legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);
​
  // draw legend text
  legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d;})
})
  }
  b();
</script>
</body>
    