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stats_variance

PHP function Edit on GitHub ✎

(PECL stats >= 1.0.0)

Returns the variance

Description

stats_variance(array $a, bool $sample = false): float

Returns the variance of the values in a.

a: The array of data to find the standard deviation for. Note that all values of the array will be cast to float.
sample: Indicates if a represents a sample of the population; defaults to false.

Returns the variance on success; false on failure.

Source: reference/stats/functions/stats-variance.xml · from the official PHP manual (php/doc-en)