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Hey, I'm trying to trade using velocity/acceleration principles.
I thought a good place to start would be by creating a momentum indicator into another, but for the life of me, I can't seem to do it.
Would anyone give me a hand please?
- I've tried this
- ```
- self.spyVelocity = self.MOMP("SPY", 10, Resolution.Minute)
- self.spyAcceleration = self.MOMP(10, Resolution.Minute)
- self.RegisterIndicator(self.spyVelocity, self.spyAcceleration, Resolution.Minute)
- ```
- as well as this
- ```
- self.spyVelocity = self.MOMP("SPY", 10, Resolution.Minute)
- self.spyAcceleration = IndicatorExtensions.Of(self.MOMP, self.spyVelocity)
- ```
Rahul Chowdhury
Hey Oscar,
We can create a blank MomentumPercent indicator to hold our value for acceleration and then manually update it with values from the velocity. This is easily done using the Updated event handler for our velocity indicator, which fires each time the velocity indicator is updated.
self.spy_velocity = self.MOMP("SPY", 10, Resolution.Minute) self.spy_velocity.Updated += self.OnSPYVelocityself.spy_acceleration = MomentumPercent(10)Then in our Updated event handler, we can update our acceleration:
def OnSPYVelocity(self, sender, updated): if self.spy_velocity.IsReady: self.spy_acceleration.Update(self.Time, updated.Value)Best
Rahul
Oscar Lee
Apologies, what does
self.spy_velocity.Updated += self.OnSPYVelocitydo in this context? I'm confused as I understand self.OnSPYVelocity is a function
Rahul Chowdhury
Hey Oscar,
self.spy_velocity.Updated is the Updated event handler method for the indicator.
self.spy_velocity.Updated += self.OnSPYVelocityThis sets the self.OnSPYVelocity method as our Updated event handler, so that self.OnSPYVelocity is called each time self.spy_velocity is updated.
Learn more about event handlers in Python here.
Best
Rahul
Oscar Lee
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