我正在尝试在基于 Quantconnect 的 python 中制作一个交易机器人，但我无法获得托管对象

如何解决我正在尝试在基于 Quantconnect 的 python 中制作一个交易机器人，但我无法获得托管对象

我看过其他线程，但无法根据它弄清楚。

类DataConsolidationAlgorithm(QCAlgorithm)：

def Initialize(self):
    '''Initialise the data and resolution required,as well as the cash and start-end dates for your algorithm. All algorithms must initialized.'''

    self.SetStartDate(2017,1,1)    #Set Start Date
    self.SetEndDate(2020,1)      #Set End Date
    self.SetCash(100000)             #Set Strategy Cash

    self.SetbrokerageModel(brokerageName.Fxcmbrokerage)


    symbols = [self.AddForex(ticker,Resolution.Minute).Symbol
        for ticker in ["EURUSD"]]

    self.SetBenchmark('SPY')
    
    self.slow = self.EMA("EURUSD",200,Resolution.Daily)
    
    self.SetWarmUp(200)

def OnData(self,data):
    # Simple buy and hold template

    self.low = self.MIN("EURUSD",7,Resolution.Daily,Field.Low)
    self.high = self.MAX("EURUSD",Field.High)
    
    #fxQuoteBars = data.QuoteBars
    #QuoteBar = fxQuoteBars['EURUSD'].Close
    #self.QuoteBar = self.History("EURUSD",TimeSpan.FromDays(1),Resolution.Daily)
    
    self.quoteBar = data['EURUSD']   ## EURUSD QuoteBar
    #self.Log(f"Mid-point open price: {quoteBar.Open}")

    self.closeBar = (self.quoteBar.Close)       ## EURUSD Bid Bar 

    self.history7days = self.History(["EURUSD"],Resolution.Daily)
    
    if self.closeBar <= self.low and self.Forex["EURUSD"].Price > self.slow.Current.Value:
        self.SetHoldings("EURUSD",1.0)
    
    if self.closeBar > self.high:
        self.SetHolding("EURUSD",0.0)

运行时错误：类型错误：无法获取托管对象在 main.py:line 50 中的 OnData :: if self.closeBar self.slow.Current.Value: 类型错误：无法获取托管对象

解决方法

我遇到了类似的错误，并通过确保我尝试在 if 语句中与、= 等进行比较的数据类型属于相同类型来解决它。

重新定义您要比较的指标作为 OnData 中的本地指标，如下所示，您的所有指标都将是相同的数据类型：

def Initialize(self):
'''Initialise the data and resolution required,as well as the cash and start-end dates for your algorithm. All algorithms must initialized.'''

self.SetStartDate(2017,1,1)    #Set Start Date
self.SetEndDate(2020,1)      #Set End Date
self.SetCash(100000)             #Set Strategy Cash

self.SetBrokerageModel(BrokerageName.FxcmBrokerage)


symbols = [self.AddForex(ticker,Resolution.Minute).Symbol
    for ticker in ["EURUSD"]]

self.SetBenchmark('SPY')

self.slow = self.EMA("EURUSD",200,Resolution.Daily)

self.SetWarmUp(200)

# Simple buy and hold template

self.low = self.MIN("EURUSD",7,Resolution.Daily,Field.Low)
self.high = self.MAX("EURUSD",Field.High)

#fxQuoteBars = data.QuoteBars
#QuoteBar = fxQuoteBars['EURUSD'].Close
#self.QuoteBar = self.History("EURUSD",TimeSpan.FromDays(1),Resolution.Daily)

self.quoteBar = data['EURUSD']   ## EURUSD QuoteBar
#self.Log(f"Mid-point open price: {quoteBar.Open}")

self.closeBar = (self.quoteBar.Close)       ## EURUSD Bid Bar 

self.history7days = self.History(["EURUSD"],Resolution.Daily)

def OnData(self,data):

closebar = self.closeBar.Current.Value
low = self.low.Current.Value
price = self.Forex["EURUSD"].Price
slow = self.slow.Current.Value
high = self.high.Current.Value

if closeBar <= low and price > slow :
    self.SetHoldings("EURUSD",1.0)

if closeBar > high:
    self.SetHolding("EURUSD",0.0)