Method avg

tensorflow/core/util/stats_calculator.h:69–72

  bool all_same() const { return (count_ == 0 || min_ == max_); }

  HighPrecisionValueType avg() const {
    return empty() ? std::numeric_limits<ValueType>::quiet_NaN()
                   : static_cast<HighPrecisionValueType>(sum_) / count_;
  }

  ValueType std_deviation() const {
    return all_same() ? 0 : sqrt(squared_sum_ / count_ - avg() * avg());