我有一个数据帧“信号”:
coresym open_orders direction
27 EURUSD 2.0 1.0
76 XAUUSD 2.0 9.0
因为我需要一些条件来设置我的“\u exec\u dict”,这是一个告诉交易平台我的订单是什么的字典
for symbol in do_symbols:
#close positon
if ((signal['coresym']==symbol) & (signal['direction'] == 9)):
_exec_dict['_action'] = 'CLOSE'
_exec_dict['_symbol'] = symbol
_exec_dict['_magic'] = symbols_magic_dic[symbol]
_ret = self._execution._execute_(_exec_dict)
print('{} is traded'.format(symbol))
问题是我不能使用
if ((signal['coresym']==symbol) & (signal['direction'] == 9)):
进行条件确定
要进行测试,请执行以下操作:
if((signal['coresym']=='XAUUSD') & (signal['direction'] == 9)):
print('ok')
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-52-f0dcc93290aa> in <module>
----> 1 if((signal['coresym']=='XAUUSD') & (signal['direction'] == 9)):
2 print('ok')
~\Anaconda3\lib\site-packages\pandas\core\generic.py in __nonzero__(self)
1476
1477 def __nonzero__(self):
-> 1478 raise ValueError(
1479 f"The truth value of a {type(self).__name__} is ambiguous. "
1480 "Use a.empty, a.bool(), a.item(), a.any() or a.all()."
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().
有一些改变
if signal[signal['coresym'] == 'XAUUSD']['direction'] == 9:
print('ok')
结果是:
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-49-67440d7a0b81> in <module>
----> 1 if signal[signal['coresym'] == 'XAUUSD']['direction'] == 9:
2 print('ok')
~\Anaconda3\lib\site-packages\pandas\core\generic.py in __nonzero__(self)
1476
1477 def __nonzero__(self):
-> 1478 raise ValueError(
1479 f"The truth value of a {type(self).__name__} is ambiguous. "
1480 "Use a.empty, a.bool(), a.item(), a.any() or a.all()."
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().
在搜索之后,比如Truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all() 我确实使用了“&;”
{}不是问题所在
if((signal['coresym']=='XAUUSD') & (signal['direction'] == 9)): print('ok')
你是否需要说如果{所有{}的元素都等于{},所有{}的元素都是{}
或者你的意思是如果
any
其中的一个这就是错误描述的模糊性
在你的猫周围使用
all()
或any()
。例如:if((signal['coresym']=='XAUUSD').all() & (signal['direction'] == 9).all()): print('ok')
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