src/main/java/org/apache/datasketches/quantiles/ItemsUtil.java [131:152]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  private static <T> String outputLevels(final ItemsSketch<T> sk) {
    final String name = sk.getClass().getSimpleName();
    final int k = sk.getK();
    final long n = sk.getN();
    final int totNumLevels = computeNumLevelsNeeded(k, n);
    final long bitPattern = sk.getBitPattern();
    final StringBuilder sb =  new StringBuilder();
    sb.append(LS).append("### ").append(name).append(" LEVELS ABOVE BASE BUF:").append(LS);
    if (totNumLevels == 0) {
      sb.append("    <NONE>").append(LS);
    } else {
      sb.append("    Level |  Valid |  Weight").append(LS);
      for (int i = 0; i < totNumLevels; i++) {
        final String wt = "" + (1L << (i + 1));
        final String valid = getValidFromLevel(i, bitPattern) ? "T" : "F";
        final String row = String.format("  %7s %8s %9s", i, valid, wt);
        sb.append(row).append(LS);
      }
    }
    sb.append("### END LEVELS ABOVE BASE BUF").append(LS);
    return sb.toString();
  }
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



src/main/java/org/apache/datasketches/quantiles/DoublesUtil.java [163:184]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  private static <T> String outputLevels(final DoublesSketch sk) {
    final String name = sk.getClass().getSimpleName();
    final int k = sk.getK();
    final long n = sk.getN();
    final int totNumLevels = computeNumLevelsNeeded(k, n);
    final long bitPattern = sk.getBitPattern();
    final StringBuilder sb =  new StringBuilder();
    sb.append(LS).append("### ").append(name).append(" LEVELS ABOVE BASE BUF:").append(LS);
    if (totNumLevels == 0) {
      sb.append("    <NONE>").append(LS);
    } else {
      sb.append("    Level |  Valid |  Weight").append(LS);
      for (int i = 0; i < totNumLevels; i++) {
        final String wt = "" + (1L << (i + 1));
        final String valid = getValidFromLevel(i, bitPattern) ? "T" : "F";
        final String row = String.format("  %7s %8s %9s", i, valid, wt);
        sb.append(row).append(LS);
      }
    }
    sb.append("### END LEVELS ABOVE BASE BUF").append(LS);
    return sb.toString();
  }
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -