google charts basic sankey chart tutorial

Code

<!DOCTYPE html>
<html>
<head>
<title>Google Charts tutorial Tutorial</title>
   <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
   <script type="text/javascript" src="https://www.google.com/jsapi"></script>
   <script type="text/javascript">
     google.charts.load('current', {packages: ['sankey']});     
   </script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
function drawChart() {
// Define the chart to be drawn.
   var data = new google.visualization.DataTable();   
   data.addColumn('string', 'Start');
   data.addColumn('string', 'End');
   data.addColumn('number', 'Weight');

data.addRows([
      [ 'New York', 'Paris', 4 ],
      [ 'New York', 'France', 2 ],
      [ 'New York', 'Spain', 3 ],
      [ 'New York', 'England', 6 ],
      [ 'Canada', 'Paris', 2 ],
      [ 'Canada', 'France', 4 ],
      [ 'Canada', 'England', 2 ],
      [ 'Los Angeles', 'Paris', 3 ],
      [ 'Los Angeles', 'France', 5 ],
      [ 'Los Angeles', 'Spain', 4 ],
      [ 'Los Angeles', 'England', 2 ],
      [ 'USA', 'Paris', 3 ],
      [ 'USA', 'France', 6 ],
      [ 'USA', 'Spain', 5 ],
      [ 'USA', 'England', 4 ]
   ]);

// Set chart options
   var options = {
      width: 550
   };
		
   // Instantiate and draw the chart.
   var chart = new google.visualization.Sankey(document.getElementById('container'));
   chart.draw(data, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</body>
</html>

Result