Method GetTrainingScore

src/boosting/dart.hpp:78–86

! * \brief Get current training score * \param out_len length of returned score * \return training score */

  * \return training score
  */
  const double* GetTrainingScore(int64_t* out_len) override {
    if (!is_update_score_cur_iter_) {
      // only drop one time in one iteration
      DroppingTrees();
      is_update_score_cur_iter_ = true;
    }
    *out_len = static_cast<int64_t>(train_score_updater_->num_data()) * num_class_;
    return train_score_updater_->score();
  }

  bool EvalAndCheckEarlyStopping() override {
    GBDT::OutputMetric(iter_);