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.
