! \brief index of left child */

! * \brief load feature map from input stream * \param is Input text stream */

For creating the tree indptr from old models.

@brief Map the `tree_method` parameter to the `updater` parameter. */

! \brief mark that this node is deleted */

! \brief whether need backward big to small search: default left */

! \brief whether need forward small to big search: default right */

! \brief given the loss change, whether we need to invoke pruning */

The number of pages before concatenatioin.

Number of targets for histogram building (may differ from tree.NumTargets() for reduced grad)

! \brief get parent of the node */

Parse a sysfs cache "size" string like "64K", "2048K", "36864K", "2M".

Only indicator is different, so we combine all different node types into this function.

* @brief Apply inverse link (activation) function to prediction values. * * This is only called when Prediction is called * * @param [in