trader_rocr

(PECL trader >= 0.2.0)

trader_rocrRate 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.

返り値

Returns an array with calculated data or false on failure.

add a note add a note

User Contributed Notes 1 note

up
0
mityaev_ivan at mail dot ru
5 years ago
timePeriod can be from 1 (not from 2)
Working correctly, and tis is common need to calculate change from previos period.
To Top