docs: @javax.annotation.Nonnull
    public com.simiacryptus.util.data.DoubleStatistics combine(@javax.annotation.Nonnull final com.simiacryptus.util.data.DoubleStatistics other) {
      super.combine(other);
      simpleSumOfSquare += other.simpleSumOfSquare;
      sumOfSquareWithCompensation(other.sumOfSquare);
      sumOfSquareWithCompensation(other.sumOfSquareCompensation);
      return this;
    }