var tagMap map[string]string
		if len(obj.UserTags) != 0 {
			t, err := tags.ParseObjectTags(obj.UserTags)
			if err != nil {
				return false
			}
			tagMap = t.ToMap()
		}

		for _, kv := range ef.Tags {
			// Object (version) must match all tags specified in
			// the filter
			var match bool
			for t, v := range tagMap {
				if kv.Match(BatchJobKV{Key: t, Value: v}) {

      checkArgument(dataset.length > 0, "Cannot calculate quantiles of an empty dataset");
      if (containsNaN(dataset)) {
        Map<Integer, Double> nanMap = new LinkedHashMap<>();
        for (int index : indexes) {
          nanMap.put(index, NaN);
        }
        return unmodifiableMap(nanMap);
      }

      // Calculate the quotients and remainders in the integer division x = k * (N - 1) / q, i.e.