trader_stddev

(PECL trader >= 0.2.0)

trader_stddev — Standard Deviation

説明

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

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.

関連キーワード: 　Standard, Deviation, trader, stddev, array, timePeriod, nbDev, 関数, period, data