Trader trader_bbands
(PECL trader >= 0.2.0)
trader_bbands — Bollinger Bands
설명
trader_bbands(
array $real,
int $timePeriod = ?,
float $nbDevUp = ?,
float $nbDevDn = ?,
int $mAType = ?
): array
매개변수
real- Array of real values.
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.
반환 값
계산된 데이터가 있는 배열을 반환하거나 실패 시 false를 반환합니다.