trader_rocr
(PECL trader >= 0.2.0)
trader_rocr — Rate of change ratio: (price/prevPrice)
説明
array trader_rocr
( array $real
[, integer $timePeriod
] )
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.