Phpml\Math\Matrix Class Reference

Public Member Functions
	__construct (array $matrix, bool $validate=true)
	add (self $other)
	Element-wise addition of the matrix with another one.
	crossOut (int $row, int $column)
	divideByScalar ($value)
	frobeniusNorm ()
	Frobenius norm (Hilbert–Schmidt norm, Euclidean norm) (‖A‖F) Square root of the sum of the square of all elements.
	getColumns ()
	getColumnValues (int $column)
	getDeterminant ()
	getRows ()
	inverse ()
	isSingular ()
	isSquare ()
	multiply (self $matrix)
	multiplyByScalar ($value)
	subtract (self $other)
	Element-wise subtracting of another matrix from this one.
	toArray ()
	toScalar ()
	transpose ()

Static Public Member Functions
static	dot (array $array1, array $array2)
	Returns the dot product of two arrays Matrix\dot(x, y) ==> x.y'.
static	fromFlatArray (array $array)
static	transposeArray (array $array)
	Returns the transpose of given array.

Constructor & Destructor Documentation

__construct()

Phpml\Math\Matrix::__construct	(	array	$matrix,
		bool	$validate = true )

Exceptions

InvalidArgumentException

Member Function Documentation

divideByScalar()

Phpml\Math\Matrix::divideByScalar

(

$value

)

Parameters

float | int

$value

frobeniusNorm()

Phpml\Math\Matrix::frobeniusNorm

(

)

Frobenius norm (Hilbert–Schmidt norm, Euclidean norm) (‖A‖F) Square root of the sum of the square of all elements.

https://en.wikipedia.org/wiki/Matrix_norm#Frobenius_norm

     _____________
    /ᵐ   ⁿ

‖A‖F = √ Σ Σ |aᵢⱼ|² ᵢ₌₁ ᵢ₌₁

getColumnValues()

Phpml\Math\Matrix::getColumnValues

(

int

$column

)

Exceptions

MatrixException

getDeterminant()

Phpml\Math\Matrix::getDeterminant

(

)

Return values

float|int

Exceptions

MatrixException

multiplyByScalar()

Phpml\Math\Matrix::multiplyByScalar

(

$value

)

Parameters

float | int

$value

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

• lib/mlbackend/php/phpml/src/Phpml/Math/Matrix.php