Share New Research 
I am trying to do a calculation that involves data from previous bars, (which I have created using Rolling Windows and added the price data into), and then calls itself from one bar ago as apart of the calculation.
For Example (in the OnData function):
self.window = RollingWindow[TradeBar](3)
self.window.Add(data["SPY"])
HP = (self.window[0].Close - self.window[1].Close) + HP[1]
But this leaves me with an error message that I am using HP before it is assigned. May someone help me out and explain how to get this recursion problem working?
To unlock posting to the community forums please complete at least 30% of Boot Camp.
You can continue your Boot Camp training progress from the terminal. We hope to see you in the community soon!