Generates a Graph for my MTP stage 1

Graph Generation

function drawVisualization() {
  // Create and populate the data table.
  var data = new google.visualization.DataTable();
  var raw_data = [['Latency',200093,200602,201115,201686,202209,202712,203231,203741,204260,204811,205312,205830,206339,206842,207356,207857,208371,208886,209403]];
  var years = [];
  for(var i = 1; i <raw_data[0].length;i++)
  {
    years.push(i);
  }
 
                  
  data.addColumn('string', 'Task Invocation');
  for (var i = 0; i  < raw_data.length; ++i) {
    data.addColumn('number', raw_data[i][0]);    
  }
  
  data.addRows(years.length);

  for (var j = 0; j < years.length; ++j) {    
    data.setValue(j, 0, years[j].toString());    
  }
  for (var i = 0; i  < raw_data.length; ++i) {
    for (var j = 1; j  < raw_data[i].length; ++j) {
      if(j==1)
      {
         data.setValue(j-1, i+1, 0); 
      }
      else
      {
        data.setValue(j-1, i+1, raw_data[i][j]-raw_data[i][j-1]-500);    
      }
    }
  }
  
  // Create and draw the visualization.
  new google.visualization.ColumnChart(document.getElementById('visualization')).
      draw(data,
           {title:"Period 100ms, Load: Heavy",
            width:600, height:400,
            hAxis: {title: "Task Invokation Instance"},
            vAxis:{title: "ms" }
           }
      );
}