PHP Class Phpml\Regression\LeastSquares

Inheritance: implements Regression, use trait Phpml\Helper\Predictable

Show file Open project: php-ai/php-ml Class Usage Examples

Public Methods

Method	Description
getCoefficients ( ) : array
getIntercept ( ) : float
predictSample ( array $sample ) : mixed
train ( array $samples, array $targets )

Private Methods

Method	Description
computeCoefficients ( )	coefficient(b) = (X'X)-1X'Y.
getSamplesMatrix ( ) : Matrix	Add one dimension for intercept calculation.
getTargetsMatrix ( ) : Matrix

Method Details

getCoefficients() public method

public getCoefficients ( ) : array
return	array

getIntercept() public method

public getIntercept ( ) : float
return	float

predictSample() public method

public predictSample ( array $sample ) : mixed
$sample	array
return	mixed

train() public method

public train ( array $samples, array $targets )
$samples	array
$targets	array