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.

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