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I feel a bit confused reading through the documentation of indicator and consolidators. On consolidator page it says “consolidators with indicators” but in the code example it doesn't seem to have a consolidator. While on indicator page there is a more complex code snippet with explicit consolidator.
In API document it looks like there is built-in consolidator in RegisterIndicator().
Does it mean the following two snippets have same effect on creating a 10 SMA of 7min bars (consolidated from minutely bars), while the 2nd snippets has some redundancy in using explicit consolidator rather than the built-in consolidator in RegisterIndicator?
self.AddEquity("SPY", Resolution.Minute)
self.sma = SimpleMovingAverage(10)
self.RegisterIndicator("SPY", self.sma, timedelta(minutes=7))self.AddEquity("SPY", Resolution.Minute)
self.sma = SimpleMovingAverage(10)
sevenMinuteConsolidator = TradeBarConsolidator(timedelta(minutes=7))
self.SubscriptionManager.AddConsolidator("SPY", sevenMinuteConsolidator)
self.RegisterIndicator("SPY", self.sma, sevenMinuteConsolidator)Thanks
Varad Kabade
Hi Ruming Jiang,
Both methods to register the indicator are correct. If we register the indicator with a Resolution or a timedelta, a consolidator is created internally. So creating explicit consolidators comes in handy when we have multiple indicators and we wish to perform further operations on the consolidated bar.
Best,
Varad Kabade
Ruming Jiang
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