requiredSelections[requiredSelectionsCount] = quotient + 1;
          requiredSelectionsCount++;
        }
      }
      sort(requiredSelections, 0, requiredSelectionsCount);
      selectAllInPlace(
          requiredSelections, 0, requiredSelectionsCount - 1, dataset, 0, dataset.length - 1);
      Map<Integer, Double> ret = new LinkedHashMap<>();
      for (int i = 0; i < indexes.length; i++) {