I was experimenting with a very simple system to try to learn how to place trades and take them off and run through a universe of currencies, etc. Basically I didn't want the algorithm to get in the way of learning the process necessary for any system. The system is you buy above the 30 day EMA and sell below it. On AUDUSD, it actually is profitable!? Wow. I tried a bunch of others and they blow up or die slowly.
Sidenote: is there an easy way to get the user-defined universe? I currently do:
# Grab our universe, is there an easier way?
for universe in self.UniverseManager.Values:
# User defined universe has symbols from AddSecurity/AddEquity calls
if universe is UserDefinedUniverse:
break
symbols = universe.Members.Keys
for symbol in symbols:
... code per symbol...
Gurumeher Sawhney
That is great to hear! Regarding the question about accessing the user-defined universe, in this case the UniverseManager is not needed. A user-defined universe is a list of assets that the user requests. After creating a user-defined universe by AddForex(), the data needed in this case can just be accessed via self.Securities('ticker').
The backtest below shows another way of accessing a user-defined universe via UniverseManager, which is keyed by the universe name. However, this is more tedious, especially if the user-defined universe isn't named during its initialization.
Jeff Ward
Thanks! I'm definitely learning a lot. I'm a pretty strong Python programmer, but I've really struggled with MQL4 and Quantopian. This is the first time I've even been able to implement a simple alogorithm like this.
Jeff Ward
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