PHP 5.4.33 Released

trader_var

(PECL trader >= 0.2.0)

trader_varVariance

Description

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

Parameters

real

Array of real values.

timePeriod

Number of period. Valid range from 2 to 100000.

nbDev

Return Values

Returns an array with calculated data or false on failure.

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