xgboost::common::GHistBuilder Class Reference

builder for histograms of gradient statistics More...

#include <hist_util.h>

Collaboration diagram for xgboost::common::GHistBuilder:

Public Member Functions
	GHistBuilder ()=default
	GHistBuilder (size_t nthread, uint32_t nbins)
void	BuildHist (const std::vector< GradientPair > &gpair, const RowSetCollection::Elem row_indices, const GHistIndexMatrix &gmat, GHistRow hist, bool isDense)
void	BuildBlockHist (const std::vector< GradientPair > &gpair, const RowSetCollection::Elem row_indices, const GHistIndexBlockMatrix &gmatb, GHistRow hist)
void	SubtractionTrick (GHistRow self, GHistRow sibling, GHistRow parent)
uint32_t	GetNumBins () const

Detailed Description

builder for histograms of gradient statistics

Constructor & Destructor Documentation

GHistBuilder() [1/2]

xgboost::common::GHistBuilder::GHistBuilder ( )

default

GHistBuilder() [2/2]

xgboost::common::GHistBuilder::GHistBuilder ( size_t  nthread, uint32_t  nbins  )

inline

Member Function Documentation

BuildBlockHist()

void xgboost::common::GHistBuilder::BuildBlockHist	(	const std::vector< GradientPair > &	gpair,
		const RowSetCollection::Elem	row_indices,
		const GHistIndexBlockMatrix &	gmatb,
		GHistRow	hist
	)

BuildHist()

void xgboost::common::GHistBuilder::BuildHist	(	const std::vector< GradientPair > &	gpair,
		const RowSetCollection::Elem	row_indices,
		const GHistIndexMatrix &	gmat,
		GHistRow	hist,
		bool	isDense
	)

GetNumBins()

uint32_t xgboost::common::GHistBuilder::GetNumBins ( ) const

inline

SubtractionTrick()

void xgboost::common::GHistBuilder::SubtractionTrick	(	GHistRow	self,
		GHistRow	sibling,
		GHistRow	parent
	)

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

• /workspace/src/common/hist_util.h