Trader Funktionen
PHP Manual

trader_stddev

(PECL trader >= 0.2.0)

trader_stddevStandard Deviation

Beschreibung

array trader_stddev ( array $real [, integer $timePeriod [, float $nbDev ]] )

Parameter-Liste

real

Array of real values.

timePeriod

Number of period. Valid range from 2 to 100000.

nbDev

Rückgabewerte

Returns an array with calculated data or false on failure.


Trader Funktionen
PHP Manual