Cosan::R2Score< NumericType > Class Template Reference

R2 square. More...

#include <CosanMetric.h>

Inheritance diagram for Cosan::R2Score< NumericType >:

Public Member Functions
	R2Score ()
	R2Score (const CosanMatrix< NumericType > &yPredict, const CosanMatrix< NumericType > &yTrue)
NumericType	GetError (const CosanMatrix< NumericType > &yPredict, const CosanMatrix< NumericType > &yTrue) override
Public Member Functions inherited from Cosan::CosanMetric< NumericType >
	CosanMetric ()
	CosanMetric (const CosanMatrix< NumericType > &yPredict, const CosanMatrix< NumericType > &yTrue)
void	setAttr (const CosanMatrix< NumericType > &yPredict, const CosanMatrix< NumericType > &yTrue)
Public Member Functions inherited from Cosan::Evaluation
	Evaluation ()
Public Member Functions inherited from Cosan::CosanBO
	CosanBO ()
	Default constructor. More...
virtual const std::string	GetName () const
	Get the name of the objects. More...

Additional Inherited Members
Public Attributes inherited from Cosan::CosanMetric< NumericType >
NumericType	error

Detailed Description

template<Numeric NumericType>
class Cosan::R2Score< NumericType >

R2 square.

https://scikit-learn.org/stable/modules/model_evaluation.html#r2-score-the-coefficient-of-determination

Definition at line 152 of file CosanMetric.h.

Constructor & Destructor Documentation

R2Score() [1/2]

template<Numeric NumericType>

Cosan::R2Score< NumericType >::R2Score ( )

inline

Definition at line 154 of file CosanMetric.h.

: CosanMetric<NumericType>() {}

R2Score() [2/2]

template<Numeric NumericType>

Cosan::R2Score< NumericType >::R2Score ( const CosanMatrix< NumericType > &  yPredict, const CosanMatrix< NumericType > &  yTrue  )

inline

Definition at line 156 of file CosanMetric.h.

                : CosanMetric<NumericType>(yPredict, yTrue) {}

Member Function Documentation

GetError()

template<Numeric NumericType>

NumericType Cosan::R2Score< NumericType >::GetError ( const CosanMatrix< NumericType > &  yPredict, const CosanMatrix< NumericType > &  yTrue  )

inlineoverridevirtual

Reimplemented from Cosan::CosanMetric< NumericType >.

Definition at line 160 of file CosanMetric.h.

                                                                                                             {
            //          yTrueMean = Constant(yTrue.rows(), yTrue.cols(). yTrue.mean());
            this->error = 1 - (yTrue - yPredict).squaredNorm() / (yTrue.array() - yTrue.mean()).matrix().squaredNorm();
            return this->error;
        }

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

• cosan/evaluation/CosanMetric.h