trader_rocr
(PECL trader >= 0.2.0)
trader_rocr — Rate 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.
