update : 2015.11.03
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Exponential Moving Average

trader_ema

(PECL trader >= 0.2.0)

trader_emaExponential Moving Average

설명

array trader_ema ( array $real [, integer $timePeriod ] )

인수

real

Array of real values.

timePeriod

Number of period. Valid range from 2 to 100000.

반환값

Returns an array with calculated data or false on failure.