code: public JFreeChartRender setRangeAxis(double lowerBound, double upperBound) {
          ValueAxis valueAxis = getPlot().getRangeAxis();
          valueAxis.setUpperBound(upperBound);
          valueAxis.setLowerBound(lowerBound);
          return this;
      }
docs: Sets bounds for range axis.
  
  @param lowerBound lower range bound
  @param upperBound upper range bound
  @return itself (fluent interface)