trader_bbands

(PECL trader >= 0.2.0)

trader_bbands — Bollinger Bands

説明

trader_bbands ( array $real [, int $timePeriod [, float $nbDevUp [, float $nbDevDn [, int $mAType ]]]] ) : array

パラメータ

real

実数値の配列。

timePeriod

Number of period. Valid range from 2 to 100000.

nbDevUp

Deviation multiplier for upper band. Valid range from TRADER_REAL_MIN to TRADER_REAL_MAX.

nbDevDn

Deviation multiplier for lower band. Valid range from TRADER_REAL_MIN to TRADER_REAL_MAX.

mAType

Type of Moving Average. TRADER_MA_TYPE_* series of constants should be used.

返り値

Returns an array with calculated data or false on failure.