code: function(data){
      return _.map(data, function(s){
        var series;
        if (s.data) {
          series = new Series();
          _.extend(series, s);
        } else {
          series = new Series({data:s});
        }
        return series;
      });
    }
docs: Collects dataseries from input and parses the series into the right format. It returns an Array
  of Objects each having at least the 'data' key set.
  @param {Array, Object} data - Object or array of dataseries
  @return {Array} Array of Objects parsed into the right format ({(...,) data: [[x1,y1], [x2,y2], ...] (, ...)})