code: public double getCountBetweenValues(final double lowValue, final double highValue)
              throws ArrayIndexOutOfBoundsException {
          return integerValuesHistogram.getCountBetweenValues(
                  (long)(lowValue * doubleToIntegerValueConversionRatio),
                  (long)(highValue * doubleToIntegerValueConversionRatio)
          );
      }
docs: Get the count of recorded values within a range of value levels (inclusive to within the histogram's resolution).
  
  @param lowValue  The lower value bound on the range for which
  to provide the recorded count. Will be rounded down with
  {@link DoubleHistogram#lowestEquivalentValue lowestEquivalentValue}.
  @param highValue  The higher value bound on the range for which to provide the recorded count.
  Will be rounded up with {@link DoubleHistogram#highestEquivalentValue highestEquivalentValue}.
  @return the total count of values recorded in the histogram within the value range that is
  {@literal >=} lowestEquivalentValue(<i>lowValue</i>) and {@literal <=} highestEquivalentValue(<i>highValue</i>)