code: function() {
      var height = (this.graph_height / this.data_size) - this.bar_padding;
  
      if (this.options.max_bar_size && height > this.options.max_bar_size) {
        height = this.options.max_bar_size;
        this.bar_padding = this.graph_height / this.data_size;
      }
  
      return height;
    }
docs: /* Height