php calculate variance
$variance = array_sum(array_map(function ($x) use ($fMean) {
return pow($x - $fMean, 2);
}, $array)) / count($array);php calculate variance
$variance = array_sum(array_map(function ($x) use ($fMean) {
return pow($x - $fMean, 2);
}, $array)) / count($array);Copyright © 2021 Codeinu
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