trader_sar

(PECL trader >= 0.2.0)

trader_sar — Parabolic SAR

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trader_sar ( array $high , array $low [, float $acceleration [, float $maximum ]] ) : array

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high: �߼ۣ��顣
low: �ͼۣ��顣
acceleration: Acceleration Factor used up to the Maximum value. Valid range from 0 to TRADER_REAL_MAX.
maximum: Acceleration Factor Maximum value. Valid range from 0 to TRADER_REAL_MAX.

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Returns an array with calculated data or false on failure.