Php/docs/function.trader-rocr
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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.
