- PHP 手册
- 函数参考
- 数学扩展
- Trader
- Trader 函数
trader_roc
(PECL trader >= 0.2.0)
trader_roc — Rate of change : ((price/prevPrice)-1)*100
说明
trader_roc(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.
User Contributed Notes
There are no user contributed notes for this page.官方地址：https://www.php.net/manual/en/function.trader-roc.php