trader_atr

(PECL trader >= 0.2.0)

trader_atr — Average True Range

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trader_atr ( array $high , array $low , array $close [, int $timePeriod ] ) : array

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high: �߼ۣ��顣
low: �ͼۣ��顣
close: ��̼ۣ��顣
timePeriod: Number of period. Valid range from 2 to 100000.

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Returns an array with calculated data or false on failure.