code: public void setSmoothing(final boolean SMOOTHING) {
          this.smoothing = SMOOTHING;
          if (SMOOTHING) {
              hiLoIndicatorVisible = false;
          }
          init(INNER_BOUNDS.width, INNER_BOUNDS.height);
          repaint(INNER_BOUNDS);
      }
docs: Enables or disables the smoothing of the POINT_LIST and so of the sparkline
  @param SMOOTHING