Supported Indicators
Aroon Oscillator
Introduction
The Aroon Oscillator is the difference between AroonUp and AroonDown. The value of this indicator fluctuates between -100 and +100. An upward trend bias is present when the oscillator is positive, and a negative trend bias is present when the oscillator is negative. AroonUp/Down values over 75 identify strong trends in their respective direction.
To view the implementation of this indicator, see the LEAN GitHub repository.
Using AROON Indicator
To create an automatic indicators for AroonOscillator
, call the AROON
helper method from the QCAlgorithm
class. The AROON
method creates a AroonOscillator
object, hooks it up for automatic updates, and returns it so you can used it in your algorithm. In most cases, you should call the helper method in the Initialize
method.
public class AroonOscillatorAlgorithm : QCAlgorithm { private Symbol _symbol; private AroonOscillator _aroon; public override void Initialize() { _symbol = AddEquity("SPY", Resolution.Daily).Symbol; _aroon = AROON(_symbol, 10, 20); } public override void OnData(Slice data) { if (_aroon.IsReady) { // The current value of _aroon is represented by itself (_aroon) // or _aroon.Current.Value Plot("AroonOscillator", "aroon", _aroon); // Plot all properties of aroon Plot("AroonOscillator", "aroonup", _aroon.AroonUp); Plot("AroonOscillator", "aroondown", _aroon.AroonDown); } } }
class AroonOscillatorAlgorithm(QCAlgorithm): def Initialize(self) -> None: self.symbol = self.AddEquity("SPY", Resolution.Daily).Symbol self.aroon = self.AROON(self.symbol, 10, 20) def OnData(self, slice: Slice) -> None: if self.aroon.IsReady: # The current value of self.aroon is represented by self.aroon.Current.Value self.Plot("AroonOscillator", "aroon", self.aroon.Current.Value) # Plot all attributes of self.aroon self.Plot("AroonOscillator", "aroonup", self.aroon.AroonUp.Current.Value) self.Plot("AroonOscillator", "aroondown", self.aroon.AroonDown.Current.Value)
The following reference table describes the AROON
method:
AROON()1/2
AroonOscillator QuantConnect.Algorithm.QCAlgorithm.AROON (Symbol
symbol,Int32
period,*Nullable<Resolution>
resolution,*Func<IBaseData, IBaseDataBar>
selector )
Creates a new AroonOscillator indicator which will compute the AroonUp and AroonDown (as well as the delta).
AROON()2/2
AroonOscillator QuantConnect.Algorithm.QCAlgorithm.AROON (Symbol
symbol,Int32
upPeriod,Int32
downPeriod,*Nullable<Resolution>
resolution,*Func<IBaseData, IBaseDataBar>
selector )
Creates a new AroonOscillator indicator which will compute the AroonUp and AroonDown (as well as the delta).
If you don't provide a resolution, it defaults to the security resolution. If you provide a resolution, it must be greater than or equal to the resolution of the security. For instance, if you subscribe to hourly data for a security, you should update its indicator with data that spans 1 hour or longer.
For more information about the selector argument, see Alternative Price Fields.
For more information about plotting indicators, see Plotting Indicators.
You can manually create a AroonOscillator
indicator, so it doesn't automatically update. Manual indicators let you update their values with any data you choose.
Updating your indicator manually enables you to control when the indicator is updated and what data you use to update it. To manually update the indicator, call the Update
method with a TradeBar
, or QuoteBar
. The indicator will only be ready after you prime it with enough data.
public class AroonOscillatorAlgorithm : QCAlgorithm { private Symbol _symbol; private AroonOscillator _aroon; public override void Initialize() { _symbol = AddEquity("SPY", Resolution.Daily).Symbol; _aroon = new AroonOscillator(10, 20); } public override void OnData(Slice data) { if (data.Bars.TryGeValue(_symbol, out var bar)) { _aroon.Update(bar); } if (_aroon.IsReady) { // The current value of _aroon is represented by itself (_aroon) // or _aroon.Current.Value Plot("AroonOscillator", "aroon", _aroon); // Plot all properties of aroon Plot("AroonOscillator", "aroonup", _aroon.AroonUp); Plot("AroonOscillator", "aroondown", _aroon.AroonDown); } } }
class AroonOscillatorAlgorithm(QCAlgorithm): def Initialize(self) -> None: self.symbol = self.AddEquity("SPY", Resolution.Daily).Symbol self.aroon = AroonOscillator(10, 20) def OnData(self, slice: Slice) -> None: bar = slice.Bars.get(self.symbol) if bar: self.aroon.Update(bar) if self.aroon.IsReady: # The current value of self.aroon is represented by self.aroon.Current.Value self.Plot("AroonOscillator", "aroon", self.aroon.Current.Value) # Plot all attributes of self.aroon self.Plot("AroonOscillator", "aroonup", self.aroon.AroonUp.Current.Value) self.Plot("AroonOscillator", "aroondown", self.aroon.AroonDown.Current.Value)
To register a manual indicator for automatic updates with the security data, call the RegisterIndicator
method.
public class AroonOscillatorAlgorithm : QCAlgorithm { private Symbol _symbol; private AroonOscillator _aroon; public override void Initialize() { _symbol = AddEquity("SPY", Resolution.Daily).Symbol; _aroon = new AroonOscillator(10, 20); RegisterIndicator(_symbol, _aroon, Resolution.Daily); } public override void OnData(Slice data) { if (_aroon.IsReady) { // The current value of _aroon is represented by itself (_aroon) // or _aroon.Current.Value Plot("AroonOscillator", "aroon", _aroon); // Plot all properties of aroon Plot("AroonOscillator", "aroonup", _aroon.AroonUp); Plot("AroonOscillator", "aroondown", _aroon.AroonDown); } } }
class AroonOscillatorAlgorithm(QCAlgorithm): def Initialize(self) -> None: self.symbol = self.AddEquity("SPY", Resolution.Daily).Symbol self.aroon = AroonOscillator(10, 20) self.RegisterIndicator(self.symbol, self.aroon, Resolution.Daily) def OnData(self, slice: Slice) -> None: if self.aroon.IsReady: # The current value of self.aroon is represented by self.aroon.Current.Value self.Plot("AroonOscillator", "aroon", self.aroon.Current.Value) # Plot all attributes of self.aroon self.Plot("AroonOscillator", "aroonup", self.aroon.AroonUp.Current.Value) self.Plot("AroonOscillator", "aroondown", self.aroon.AroonDown.Current.Value)
The following reference table describes the AroonOscillator
constructor:
AroonOscillator()1/2
AroonOscillator QuantConnect.Indicators.AroonOscillator (int
upPeriod,int
downPeriod )
Creates a new AroonOscillator from the specified up/down periods.
AroonOscillator()2/2
AroonOscillator QuantConnect.Indicators.AroonOscillator (string
name,int
upPeriod,int
downPeriod )
Creates a new AroonOscillator from the specified up/down periods.
Visualization
The following image shows plot values of selected properties of AroonOscillator
using the plotly library.
