The truth value of an array with more than one element is ambiguous.Use a.any() or a.all()

MID1 = talib.MA(am.close, timeperiod = 20, matype=0)
TMP1 = talib.STDDEV(am.close, timeperiod = 20, nbdev=1)

    TOP1 = MID1 + 2 * TMP1
    BOTTOM1 =  MID1 - 2 * TMP1

    if self.pos == 0:
        if am.close > TOP1:-----------这里抛出异常
            self.buy(bar.close_price, fixed_size, True)

先行谢过。

self.am.close是数组不能直接用于计算
if self.pos == 0:
if am.close[-1] > TOP1:
self.buy(bar.close_price, fixed_size, True)

上弦之月 wrote:

self.am.close是数组不能直接用于计算
if self.pos == 0:
if am.close[-1] > TOP1:
self.buy(bar.close_price, fixed_size, True)
月总，我之前也是这样写的，还是会抛出来异常。后来修改，忘记把[-1]加上。