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    trader_rocr

    (PECL trader >= 0.2.0)

    trader_rocr — Rate of change ratio: (price/prevPrice)

    説明

    trader_rocr(array $real, int $timePeriod = ?): array

    パラメータ

    real

    実数値の配列。

    timePeriod

    Number of period. Valid range from 2 to 100000.

    戻り値

    Returns an array with calculated data or false on failure.

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    User Contributed Notes 1 note

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    mityaev_ivan at mail dot ru
    10 years ago
    timePeriod can be from 1 (not from 2)
    Working correctly, and tis is common need to calculate change from previos period.
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