LightGBM::BinaryMetric< PointWiseLossCalculator > Class Template Reference

Metric for binary classification task. Use static class "PointWiseLossCalculator" to calculate loss point-wise. More...

#include <binary_metric.hpp>

Inheritance diagram for LightGBM::BinaryMetric< PointWiseLossCalculator >:

Public Member Functions
	BinaryMetric (const Config &)
void	Init (const Metadata &metadata, data_size_t num_data) override
	Initialize.
const std::vector< std::string > &	GetName () const override
double	factor_to_bigger_better () const override
std::vector< double >	Eval (const double *score, const ObjectiveFunction *objective) const override
	Calcaluting and printing metric result.
Public Member Functions inherited from LightGBM::Metric
virtual	~Metric ()
	virtual destructor
Metric &	operator= (const Metric &)=delete
	Disable copy.
	Metric (const Metric &)=delete
	Disable copy.

Additional Inherited Members
Static Public Member Functions inherited from LightGBM::Metric
static LIGHTGBM_EXPORT Metric *	CreateMetric (const std::string &type, const Config &config)
	Create object of metrics.

Detailed Description

template<typename PointWiseLossCalculator>
class LightGBM::BinaryMetric< PointWiseLossCalculator >

Metric for binary classification task. Use static class "PointWiseLossCalculator" to calculate loss point-wise.

Member Function Documentation

Eval()

template<typename PointWiseLossCalculator >

std::vector< double > LightGBM::BinaryMetric< PointWiseLossCalculator >::Eval ( const double *  score, const ObjectiveFunction *  objective  ) const

inlineoverridevirtual

Calcaluting and printing metric result.

Parameters

score

Current prediction score

Implements LightGBM::Metric.

factor_to_bigger_better()

template<typename PointWiseLossCalculator >

double LightGBM::BinaryMetric< PointWiseLossCalculator >::factor_to_bigger_better ( ) const

inlineoverridevirtual

Implements LightGBM::Metric.

GetName()

template<typename PointWiseLossCalculator >

const std::vector< std::string > & LightGBM::BinaryMetric< PointWiseLossCalculator >::GetName ( ) const

inlineoverridevirtual

Implements LightGBM::Metric.

Init()

template<typename PointWiseLossCalculator >

void LightGBM::BinaryMetric< PointWiseLossCalculator >::Init ( const Metadata &  metadata, data_size_t  num_data  )

inlineoverridevirtual

Initialize.

Parameters

test_name	Specific name for this metric, will output on log
metadata	Label data
num_data	Number of data

Implements LightGBM::Metric.

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

• External/LightGBM_2.2.3/LightGBM-2.2.3/src/metric/binary_metric.hpp