Area charts behaving like line charts

// Use Morris.Area instead of Morris.Line

Morris.Area({

  element: 'graph',

  behaveLikeLine: true,

  data: [

    {x: '2011 Q1', y: 3, z: 3},

    {x: '2011 Q2', y: 2, z: 1},

    {x: '2011 Q3', y: 2, z: 4},

    {x: '2011 Q4', y: 3, z: 3}

  ],

  xkey: 'x',

  ykeys: ['y', 'z'],

  labels: ['Y', 'Z']

});