stats_covariance

(PECL stats >= 1.0.0)

stats_covarianceComputes the covariance of two data sets

Описание

stats_covariance ( array $a , array $b ) : float

Returns the covariance of a and b.

Список параметров

a

The first array

b

The second array

Возвращаемые значения

Returns the covariance of a and b, or false on failure.