ctaLineBar.py 文件源码

def __recountBoll(self):
        """????"""
        if self.inputBollLen < EMPTY_INT: return

        l = len(self.lineBar)

        if l < min(7, self.inputBollLen)+1:
            self.debugCtaLog(u'?????,??Bar?????{0}???Boll???{1}'.
                             format(len(self.lineBar), min(7, self.inputBollLen)+1))
            return

        if l < self.inputBollLen+2:
            bollLen = l-1
        else:
            bollLen = self.inputBollLen

        # ????????Bar
        listClose=[x.close for x in self.lineBar[-bollLen - 1:-1]]
        #
        upper, middle, lower = ta.BBANDS(numpy.array(listClose, dtype=float),
                                         timeperiod=bollLen, nbdevup=self.inputBollStdRate,
                                         nbdevdn=self.inputBollStdRate, matype=0)

        self.lineUpperBand.append(upper[-1])
        self.lineMiddleBand.append(middle[-1])
        self.lineLowerBand.append(lower[-1])


    # ----------------------------------------------------------------------