Support for continuous graphs

I am using the D7 version of this module.

I would like to create a graph like this one on the Google Chart docs - https://google-developers.appspot.com/chart/interactive/docs/customizing...

Here's the Javascript used to create it -

  google.setOnLoadCallback(drawContinuousDateChart);

  function drawContinuousDateChart() {
    // Create and populate the data table.
    var data = new google.visualization.DataTable();
    data.addColumn('date', 'Date');
    data.addColumn('number', 'Mass (gm)');
    data.addRows([
      [new Date(2008, 0, 1), 1],
      [new Date(2008, 1, 11), 2],
      [new Date(2008, 2, 11), 12],
      [new Date(2008, 5, 15), 30],
      [new Date(2008, 6, 11), 22],
      [new Date(2008, 7, 12), 25],
      [new Date(2008, 8, 24), 22],
      [new Date(2009, 1, 1), 30]]);

    var options = {
      title: 'Total Mass of Bacteria Population in Petri',
      width: 400, height: 240,
      strictFirstColumnType: true,
      legend: 'none',
      pointSize: 5,
      hAxis: {title: 'Date', format: 'MMM yy'},
      vAxis: {title: 'Mass (gm)'}
    };

    // Create and draw the visualization.
    var chart= new google.visualization.LineChart(document.getElementById('continuous_date_chart'));
    chart.draw(data, options);
  }

When I look through the module I don't see how I can specify the column type as number, date, datetime or timeofday which is what the Google doc say you are supposed to do if you want to create a continuous graph. So is there a way to do it?