update : 2015.11.03

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Rate of change ratio: (price/prevPrice)

Trader 함수 목록

trader_rocr

(PECL trader >= 0.2.0)

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

설명

array trader_rocr ( array $real [, integer $timePeriod ] )

인수

real: Array of real values.
timePeriod: Number of period. Valid range from 2 to 100000.

반환값

Returns an array with calculated data or false on failure.

Trader 함수 목록