trader_rocr
(PECL trader >= 0.2.0)
trader_rocr — Rate of change ratio: (price/prevPrice)
说明
trader_rocr (
array
$real [,
int $timePeriod ] ) :
array
参数
-
real -
浮点数数组。
-
timePeriod -
Number of period. Valid range from 2 to 100000.
返回值
Returns an array with calculated data or false on failure.
