Histogram builder that can handle multiple targets. More...

#include <histogram.h>

Public Member Functions
template<typename Partitioner , typename ExpandEntry >
void	BuildRootHist (DMatrix p_fmat, RegTree const p_tree, std::vector< Partitioner > const &partitioners, linalg::MatrixView< GradientPair const > gpair, ExpandEntry const &best, BatchParam const &param, bool force_read_by_column=false)
	Build the histogram for root node.

template<typename Partitioner , typename ExpandEntry >
void	BuildHistLeftRight (DMatrix p_fmat, RegTree const p_tree, std::vector< Partitioner > const &partitioners, std::vector< ExpandEntry > const &valid_candidates, linalg::MatrixView< GradientPair const > gpair, BatchParam const &param, bool force_read_by_column=false)
	Build histogram for left and right child of valid candidates.

auto const &	Histogram (bst_target_t t) const

auto &	Histogram (bst_target_t t)

void	Reset (Context const ctx, bst_bin_t total_bins, bst_target_t n_targets, BatchParam const &p, bool is_distributed, bool is_col_split, HistMakerTrainParam const param)

Detailed Description

Histogram builder that can handle multiple targets.

The documentation for this class was generated from the following file:

Public Member Functions