title: reading data from json file instead of tsv filed3
body: <p>This multi-series graph get the data from tsv file and draw a d3 graph <a href="http://bl.ocks.org/mbostock/3884955" rel="nofollow">http://bl.ocks.org/mbostock/3884955</a>, in my case my input data is always an array or a json file so I converted the data.tsv into a json file but I just couldnt draw the graph with a jsn file input.</p>
  
  <pre><code>[
  {
  "date":20111001,
  "New York":63.4,
  "San Francisco":62.7,
  "Austin":72.2
  },
  {
  "date":20111002,
  "New York":58.0,
  "San Francisco":59.9,
  "Austin":67.7
  },
  {
  "date":20111003,
  "New York":53.3,
  "San Francisco":59.1,
  "Austin":69.4
  },
  {
  "date":20111004,
  "New York":55.7,
  "San Francisco":58.8,
  "Austin":68.0
  },
  {
  "date":20111005,
  "New York":64.2,
  "San Francisco":58.7,
   "Austin":72.4
  },
  {
  "date":20111006,
  "New York":58.8,
  "San Francisco":57.0,
  "Austin":77.0
  },
  {
  "date":20111007,
  "New York":57.9,
  "San Francisco":56.7,
  "Austin":82.3
  },
  {
  "date":20111008,
  "New York":61.8,
  "San Francisco":56.8,
  "Austin":78.9
  },
  {
  "date":20111009,
  "New York":69.3,
  "San Francisco":56.7,
  "Austin":68.8
  },
  {
  "date":20111010,
  "New York":71.2,
  "San Francisco":60.1,
  "Austin":68.7
  },
  {
  "date":20111011,
  "New York":68.7,
  "San Francisco":61.1,
  "Austin":70.3
  },
  {
  "date":20111012,
  "New York":61.8,
  "San Francisco":61.5,
  "Austin":75.3
  },
  {
  "date":20111013,
  "New York":63.0,
  "San Francisco":64.3,
  "Austin":76.6
  },
  {
  "date":20111014,
  "New York":66.9,
  "San Francisco":67.1,
  "Austin":66.6
  },
  {
  "date":20111015,
  "New York":61.7,
  "San Francisco":64.6,
  "Austin":68.0
  },
  {
  "date":20111016,
  "New York":61.8,
  "San Francisco":61.6,
  "Austin":70.6
  },
  {
  "date":20111017,
  "New York":62.8,
  "San Francisco":61.1,
  "Austin":71.1
  },
  {
  "date":20111018,
  "New York":60.8,
  "San Francisco":59.2,
  "Austin":70.0
  },
  {
  "date":20111019,
  "New York":62.1,
  "San Francisco":58.9,
  "Austin":61.6
  },
  {
  "date":20111020,
  "New York":65.1,
  "San Francisco":57.2,
  "Austin":57.4
  },
  {
  "date":20111021,
  "New York":55.6,
  "San Francisco":56.4,
  "Austin":64.3
  },
  {
  "date":20111022,
  "New York":54.4,
  "San Francisco":60.7,
  "Austin":72.4
  },
  {
  "date":20111023,
  "New York":54.4,
  "San Francisco":65.1,
  "Austin":72.4
  },
  {
  "date":20111024,
  "New York":54.8,
  "San Francisco":60.9,
  "Austin":72.5
  },
  {
  "date":20111025,
  "New York":57.9,
  "San Francisco":56.1,
  "Austin":72.7
  },
  {
  "date":20111026,
  "New York":54.6,
  "San Francisco":54.6,
  "Austin":73.4
  },
  {
  "date":20111027,
  "New York":54.4,
  "San Francisco":56.1,
  "Austin":70.7
  }
  ]
  </code></pre>
  
  <p>Any ideas?</p>