Method Feature2Group

include/LightGBM/dataset.h:358–360

    return used_feature_map_[col_idx];
  }
  inline int Feature2Group(int feature_idx) const {
    return feature2group_[feature_idx];
  }
  inline int Feture2SubFeature(int feature_idx) const {
    return feature2subfeature_[feature_idx];
  }