public void sortMap(Map<String, GroupByStatsValues<Double, Double>> map) {

      long startTime = System.currentTimeMillis();


     MaxValueComparator gbvc = new MaxValueComparator(map);
      //CountValueComparator gbvc = new CountValueComparator(map);
    TreeMap<String, GroupByStatsValues<Double, Double>> sorted_map = new TreeMap<String, GroupByStatsValues<Double, Double>>(
        gbvc);
    sorted_map.putAll(map);
    long endTime = System.currentTimeMillis();

    System.out.println("time to sort: " + (endTime - startTime));
    int i = 0;
    for (String s : sorted_map.keySet()) {
      if (i > 10) {
        break;
      } else {


      double x = sorted_map.get(s).getMax();

      if (!sorted_map.containsKey(s)) {
        System.out.println("yello");
      } else {
      System.out.println("key/value: " + s + "/"
            + sorted_map.get(s).getCount());

        i++;
      }

    }

    }
    }

    class CountValueComparator implements Comparator {

      Map<String, GroupByStatsValues<Double, Double>> base;

    public CountValueComparator(
        Map<String, GroupByStatsValues<Double, Double>> base) {
      this.base = base;
    }

    public int compare(Object a, Object b) {
      String aStr = (String) a;
      String bStr = (String) b;
      if (((GroupByStatsValues<Double, Double>) base.get(aStr)).getCount() < ((GroupByStatsValues<Double, Double>) base
          .get(bStr)).getCount()) {
        return 1;
      } else if (((GroupByStatsValues<Double, Double>) base.get(aStr))
          .getCount() == ((GroupByStatsValues<Double, Double>) base
          .get(bStr)).getCount()) {
        return 0;
      } else {
        return -1;
      }
    }
  }

     class MaxValueComparator implements Comparator {

    Map<String, GroupByStatsValues<Double, Double>> base;

    public MaxValueComparator(
        Map<String, GroupByStatsValues<Double, Double>> base) {
      this.base = base;
    }

    public int compare(Object a, Object b) {
      String aStr = (String) a;
      String bStr = (String) b;
      if (((GroupByStatsValues<Double, Double>) base.get(aStr)).getMax() < ((GroupByStatsValues<Double, Double>) base
          .get(bStr)).getMax()) {
        return 1;
      } else if (((GroupByStatsValues<Double, Double>) base.get(aStr))
          .getMax() == ((GroupByStatsValues<Double, Double>) base
          .get(bStr)).getMax()) {
        return 0;
      } else {
        return -1;
      }
    }
  }