Static Public Member Functions
static	covarianceMatrix (array $data, ?array $means=null)
	Returns the covariance matrix of n-dimensional data.

static	fromDataset (array $data, int $i, int $k, bool $sample=true, ?float $meanX=null, ?float $meanY=null)
	Calculates covariance of two dimensions, i and k in the given data.

static	fromXYArrays (array $x, array $y, bool $sample=true, ?float $meanX=null, ?float $meanY=null)

Member Function Documentation

◆ covarianceMatrix()

static Phpml\Math\Statistic\Covariance::covarianceMatrix	(	array	$data,
		?array	$means = null )

static

Returns the covariance matrix of n-dimensional data.

Parameters

array | null $means

static Phpml\Math\Statistic\Covariance::fromDataset	(	array	$data,
		int	$i,
		int	$k,
		bool	$sample = true,
		?float	$meanX = null,
		?float	$meanY = null )

static

Calculates covariance of two dimensions, i and k in the given data.

Exceptions

InvalidArgumentException
Exception

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