stats_covariance

(PECL stats >= 1.0.0)

stats_covariance — Computes the covariance of two data sets

Description

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

Returns the covariance of a and b.

Liste de paramètres

a

The first array

b

The second array

Valeurs de retour

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