indicators.py 文件源码

def calculate_bbands(self, period_name, close):
        timeperiod = 20
        upperband_1, middleband_1, lowerband_1 = talib.BBANDS(close, timeperiod=timeperiod, nbdevup=1, nbdevdn=1, matype=0)

        self.current_indicators[period_name]['bband_upper_1'] = upperband_1[-1]
        self.current_indicators[period_name]['bband_lower_1'] = lowerband_1[-1]

        upperband_2, middleband_2, lowerband_2 = talib.BBANDS(close, timeperiod=timeperiod, nbdevup=2, nbdevdn=2, matype=0)

        self.current_indicators[period_name]['bband_upper_2'] = upperband_2[-1]
        self.current_indicators[period_name]['bband_lower_2'] = lowerband_2[-1]