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<stats_stat_binomial_coefstats_stat_factorial>
^Statistic FunctionsLast updated: Mon, 26 Oct 2026

stats_stat_correlation

(PECL stats >= 1.0.0)

stats_stat_correlation — Returns the Pearson correlation coefficient of two data sets

Description

function stats_stat_correlation(array $arr1, array $arr2): float

Returns the Pearson correlation coefficient between arr1 and arr2.

Parameters

arr1

The first array

arr2

The second array

Return Values

Returns the Pearson correlation coefficient between arr1 and arr2, or false on failure.


<stats_stat_binomial_coefstats_stat_factorial>
^Statistic FunctionsLast updated: Mon, 26 Oct 2026