|
update : 2015.11.03
php.shukuma.com검색:
|
trader_stddev(PECL trader >= 0.2.0) trader_stddev — Standard Deviation 설명
array trader_stddev
( array
$real
[, integer $timePeriod
[, float $nbDev
]] )
인수
반환값Returns an array with calculated data or false on failure. |