Google Charts for C/I

charts.js

function drawVisualization() {
  // Create and populate the data table.
  // sum total distinct rows and then take each group % of share of total distinct
  var data = google.visualization.arrayToDataTable([
    ['Year',     'Group A', 'Group B', 'Group C', 'Group D'],
    ['Group A',  100,    100,    100,   100],
    ['Group B',  100,    100,    100,   100],
  ]);

  // Create and draw the visualization.
  new google.visualization.BarChart(document.getElementById('visualization')).
      draw(data,
           {title:"Compare/Intersect",
            width:600, height:400,
            vAxis: {title: "Groups"},
            hAxis: {title: "# Rows"},
            isStacked: true}
      );
}