docs: function () {
  		var series = this;
  
  		each(series.points, function (point) {
  			if (!series.options.connectNulls && (point.low === null || point.high === null)) {
  				point.y = null;
  			} else if (point.low === null && point.high !== null) {
  				point.y = point.high;
  			}
  		});
  		Series.prototype.getSegments.call(this);
  	}