xgboost::common::GHistIndexMatrix Struct Reference

preprocessed global index matrix, in CSR format More...

#include <hist_util.h>

Collaboration diagram for xgboost::common::GHistIndexMatrix:

Public Member Functions
void	Init (DMatrix *p_fmat, int max_num_bins)
template<typename BinIdxType , typename GetOffset >
void	SetIndexData (common::Span< BinIdxType > index_data_span, size_t batch_threads, const SparsePage &batch, size_t rbegin, size_t nbins, GetOffset get_offset)
void	ResizeIndex (const size_t n_index, const bool isDense)
void	GetFeatureCounts (size_t *counts) const
bool	IsDense () const

Public Attributes
std::vector< size_t >	row_ptr
	row pointer to rows by element position More...
Index	index
	The index data. More...
std::vector< size_t >	hit_count
	hit count of each index More...
HistogramCuts	cut
	The corresponding cuts. More...
DMatrix *	p_fmat
size_t	max_num_bins

Detailed Description

preprocessed global index matrix, in CSR format

Transform floating values to integer index in histogram This is a global histogram index for CPU histogram. On GPU ellpack page is used.

Member Function Documentation

GetFeatureCounts()

void xgboost::common::GHistIndexMatrix::GetFeatureCounts ( size_t *  counts ) const

inline

Init()

void xgboost::common::GHistIndexMatrix::Init	(	DMatrix *	p_fmat,
		int	max_num_bins
	)

IsDense()

bool xgboost::common::GHistIndexMatrix::IsDense ( ) const

inline

ResizeIndex()

void xgboost::common::GHistIndexMatrix::ResizeIndex	(	const size_t	n_index,
		const bool	isDense
	)

SetIndexData()

template<typename BinIdxType , typename GetOffset >

void xgboost::common::GHistIndexMatrix::SetIndexData ( common::Span< BinIdxType >  index_data_span, size_t  batch_threads, const SparsePage &  batch, size_t  rbegin, size_t  nbins, GetOffset  get_offset  )

inline

Member Data Documentation

cut

HistogramCuts xgboost::common::GHistIndexMatrix::cut

The corresponding cuts.

hit_count

std::vector<size_t> xgboost::common::GHistIndexMatrix::hit_count

hit count of each index

index

Index xgboost::common::GHistIndexMatrix::index

The index data.

max_num_bins

size_t xgboost::common::GHistIndexMatrix::max_num_bins

p_fmat

DMatrix* xgboost::common::GHistIndexMatrix::p_fmat

row_ptr

std::vector<size_t> xgboost::common::GHistIndexMatrix::row_ptr

row pointer to rows by element position

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

• /home/runner/work/xgboost/xgboost/src/common/hist_util.h