Candlestick Patterns

Three White Soldiers

Introduction

Create a new Three Advancing White Soldiers candlestick pattern to indicate the pattern's presence.

To view the implementation of this candlestick pattern, see the LEAN GitHub repository.

Using ThreeWhiteSoldiers Indicator

To create an automatic indicators for ThreeWhiteSoldiers, call the ThreeWhiteSoldiers helper method from the QCAlgorithm class. The ThreeWhiteSoldiers method creates a ThreeWhiteSoldiers 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 Initializeinitialize method.

public class ThreeWhiteSoldiersAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ThreeWhiteSoldiers _threewhitesoldiers;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _threewhitesoldiers = CandlestickPatterns.ThreeWhiteSoldiers(_symbol);
    }

    public override void OnData(Slice data)
    {
        if (_threewhitesoldiers.IsReady)
        {
            // The current value of _threewhitesoldiers is represented by itself (_threewhitesoldiers)
            // or _threewhitesoldiers.Current.Value
            Plot("ThreeWhiteSoldiers", "threewhitesoldiers", _threewhitesoldiers);
            
        }
    }
}
class ThreeWhiteSoldiersAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.threewhitesoldiers = self.CandlestickPatterns.ThreeWhiteSoldiers(self.symbol)

    def on_data(self, slice: Slice) -> None:
        if self.threewhitesoldiers.IsReady:
            # The current value of self.threewhitesoldiers is represented by self.threewhitesoldiers.Current.Value
            self.plot("ThreeWhiteSoldiers", "threewhitesoldiers", self.threewhitesoldiers.Current.Value)

The following reference table describes the ThreeWhiteSoldiers method:

ThreeWhiteSoldiers()1/1

            ThreeWhiteSoldiers QuantConnect.Algorithm.CandlestickPatterns.ThreeWhiteSoldiers (
    Symbol                                symbol,
    *Nullable<Decimal>              resolution,
    *Func<IBaseData, IBaseDataBar>  selector
   )

Creates a new ThreeWhiteSoldiers pattern indicator. The indicator will be automatically updated on the given resolution.

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 ThreeWhiteSoldiers 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 Updateupdate method with a TradeBar. The indicator will only be ready after you prime it with enough data.

public class ThreeWhiteSoldiersAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ThreeWhiteSoldiers _threewhitesoldiers;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _threewhitesoldiers = new ThreeWhiteSoldiers();
    }

    public override void OnData(Slice data)
    {
        if (data.Bars.TryGetValue(_symbol, out var bar))
        {      
            _threewhitesoldiers.Update(bar);
        }
   
        if (_threewhitesoldiers.IsReady)
        {
            // The current value of _threewhitesoldiers is represented by itself (_threewhitesoldiers)
            // or _threewhitesoldiers.Current.Value
            Plot("ThreeWhiteSoldiers", "threewhitesoldiers", _threewhitesoldiers);
            
        }
    }
}
class ThreeWhiteSoldiersAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.threewhitesoldiers = ThreeWhiteSoldiers()

    def on_data(self, slice: Slice) -> None:
        bar = slice.Bars.get(self.symbol)
        if bar:
            self.threewhitesoldiers.Update(bar)
        if self.threewhitesoldiers.IsReady:
            # The current value of self.threewhitesoldiers is represented by self.threewhitesoldiers.Current.Value
            self.plot("ThreeWhiteSoldiers", "threewhitesoldiers", self.threewhitesoldiers.Current.Value)

To register a manual indicator for automatic updates with the security data, call the RegisterIndicator method.

public class ThreeWhiteSoldiersAlgorithm : QCAlgorithm
{
    private Symbol _symbol;
    private ThreeWhiteSoldiers _threewhitesoldiers;

    public override void Initialize()
    {
        _symbol = AddEquity("SPY", Resolution.Daily).Symbol;
        _threewhitesoldiers = new ThreeWhiteSoldiers();
        RegisterIndicator(_symbol, _threewhitesoldiers, Resolution.Daily);
    }

    public override void OnData(Slice data)
    {
        if (_threewhitesoldiers.IsReady)
        {
            // The current value of _threewhitesoldiers is represented by itself (_threewhitesoldiers)
            // or _threewhitesoldiers.Current.Value
            Plot("ThreeWhiteSoldiers", "threewhitesoldiers", _threewhitesoldiers);
            
        }
    }
}
class ThreeWhiteSoldiersAlgorithm(QCAlgorithm):
    def Initialize(self) -> None:
        self._symbol = self.AddEquity("SPY", Resolution.Daily).Symbol
        self.threewhitesoldiers = ThreeWhiteSoldiers()
        self.RegisterIndicator(self.symbol, self.threewhitesoldiers, Resolution.Daily)

    def on_data(self, slice: Slice) -> None:
        if self.threewhitesoldiers.IsReady:
            # The current value of self.threewhitesoldiers is represented by self.threewhitesoldiers.Current.Value
            self.plot("ThreeWhiteSoldiers", "threewhitesoldiers", self.threewhitesoldiers.Current.Value)

The following reference table describes the ThreeWhiteSoldiers constructor:

ThreeWhiteSoldiers()1/2

            ThreeWhiteSoldiers QuantConnect.Indicators.CandlestickPatterns.ThreeWhiteSoldiers (
    string  name
   )

Initializes a new instance of the ThreeWhiteSoldiers class using the specified name.

ThreeWhiteSoldiers()2/2

            ThreeWhiteSoldiers QuantConnect.Indicators.CandlestickPatterns.ThreeWhiteSoldiers (
    
   )

Initializes a new instance of the ThreeWhiteSoldiers class.

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