Method weights

include/LightGBM/dataset.h:151–157

! * \brief Get weights, if not exists, will return nullptr * \return Pointer of weights */

  * \return Pointer of weights
  */
  inline const label_t* weights() const {
    if (!weights_.empty()) {
      return weights_.data();
    } else {
      return nullptr;
    }
  }

  /*!
  * \brief Get data boundaries on queries, if not exists, will return nullptr