trader_wclprice

PHP マニュアル

trader_var

Variance

説明

array trader_var(array $real, int $timePeriod = ?, float $nbDev = ?)

パラメータ

real: 実数値の配列。
timePeriod: Number of period. Valid range from 2 to 100000.
nbDev

戻り値

Returns an array with calculated data or false on failure.