Heikin Ashi conditional mapping

sofia

#1

12/10/2011 3:38 PM

Hello,

How do I map Heikin Ashi candle pattern as buy and sell ? I want to map Heiken Ashi Candle pattern as buy and sell. i.e If previous candle is Heiken Ashi red and current candle is Heiken Ashi blue
then buy at close and cover at close.
if previous candle is Heiken Ashi blue and current candle is Heiken Ashi red then sell and short at close.

HHclose,HHopen,HHhigh and HHlow are Heikin Ashi candle bars.

Here is what I am trying to do

Sorry I am not very good with programming and still learning. So any help is appreciated.

Sofia

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Hello,

How do I map Heikin Ashi candle pattern as buy and sell ? I want to map Heiken Ashi Candle pattern as buy and sell. i.e If previous candle is Heiken Ashi red and current candle is Heiken Ashi blue
then buy at close and cover at close.
if previous candle is Heiken Ashi blue and current candle is Heiken Ashi red then sell and short at close.

HHclose,HHopen,HHhigh and HHlow are Heikin Ashi candle bars.

Here is what I am trying to do[code]
DataSeries Hclose = GetExternalSymbol("msft",true).Close;
DataSeries Hopen = GetExternalSymbol("msft",true).Open;
DataSeries Hhigh = GetExternalSymbol("msft",true).High;
DataSeries Hlow = GetExternalSymbol("msft",true).Low;

// These are Heiken Ashi candle formation from http://www2.wealth-lab.com/WL5WIKI/CCHeikinAshi.ashx
//Close = (Open+High+Low+Close)/4
//Open = [Open (previous bar) + Close (previous bar)]/2
//High = Max (High,Open,Close)
//Low = Min (Low,Open,Close)

for(int bar = GetTradingLoopStartBar(53); bar < Bars.Count; bar++)
			           
{ 
  DataSeries HHClose = (Hopen[bar]+Hhigh[bar]+Hlow[bar]+Hclose[bar])/4;
  DataSeries HHopen =  (Hopen[bar-1]+Hclose[bar-1])/2;
 // DataSeries HHhigh =    How do I code this ??
// DataSeries HHlow = How do I code this ???    
				
 //Then how to form coditional for blue candle and red candle to be used below          
			
// bool bear = (HeikenAshiBlue[bar-1] && HeikenAshiRed[bar]);
// bool bull = (HeikenAshiRed[bar-1] && HeikenAshiBlue[bar])
	//if(bear)
									{       
					ShortAtMarket( bar+1, "Short" );   
					SellAtMarket( bar+1,Position.AllPositions, "Sell Long" );
									}
				else
               
				//if(bull)
					{				{       
					CoverAtMarket( bar+1,Position.AllPositions, "CoverShort" );
					BuyAtMarket(bar+1,"Long");   
					}				}
               
}

[/code]

Sorry I am not very good with programming and still learning. So any help is appreciated.

Sofia

Eugene

#2

12/10/2011 4:19 PM

Next time you post some code (or pseudocode), please wrap it in
CODE tags, not QUOTE.

You don't need to code this. Just search the forum, and it will pop up an existing Heiken Ashi code and a pointer to the QuickRef function with that code.

Is there a reason for dropping the default check for last Position active from the code? (No, it will not work.)

See Knowledge Base > WealthScript Techniques | Creating a Stop-And-Reverse (SAR) system

Considering all of the aforementioned, see code below:

P.S. Are you looking at Heiken Ashi bars for an external symbol to make the trading decisions?

Size:

Color:

Next time you post some code (or pseudocode), please wrap it in 
[b]CODE[/b] tags, not QUOTE.

[QUOTE]// DataSeries HHhigh = How do I code this ??[/QUOTE]
You don't need to code this. Just search the forum, and it will pop up an existing Heiken Ashi code and a pointer to the QuickRef function with that code.
[QUOTE]//if(bear)[/QUOTE]
Is there a reason for dropping the default check for last Position active from the code? (No, it will not work.)
[QUOTE]if previous candle is Heiken Ashi blue and current candle is Heiken Ashi red then sell and short at close.[/QUOTE]
See Knowledge Base > [LINK=http://www2.wealth-lab.com/WL5WIKI/kbSAR.ashx]WealthScript Techniques | Creating a Stop-And-Reverse (SAR) system[/LINK]
[QUOTE]// bool bear = (HeikenAshiBlue[bar-1] && HeikenAshiRed[bar]);[/QUOTE]

Considering all of the aforementioned, see code below:
[CODE]using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class MyStrategy : WealthScript
	{
		protected override void Execute()
		{
			Bars bars = new Bars( Bars.Symbol.ToString() + " (Heikin-Ashi)", BarScale.Daily, 0 );
    
			// Create Heikin-Ashi series
			DataSeries HO = Open + 0;
			DataSeries HH = High + 0;
			DataSeries HL = Low + 0;         
			DataSeries HC = (Open + High + Low + Close) / 4;
    
			// Build the Bars object
			for (int bar = 1; bar < Bars.Count; bar++)
			{
				double o1 = HO[bar-1]; 
				double c1 = HC[bar-1]; 
				HO[bar] = ( o1 + c1 ) / 2; 
				HH[bar] = Math.Max( HO[bar], High[bar] ); 
				HL[bar] = Math.Min( HO[bar], Low[bar] );             
        
				bars.Add( Bars.Date[bar], HO[bar], HH[bar], HL[bar], HC[bar], Bars.Volume[bar]);
			}
			
			bars = Synchronize(bars);
			
			for(int bar = GetTradingLoopStartBar(3); bar < Bars.Count; bar++)
			{
				//If previous candle is Heiken Ashi red and current candle is Heiken Ashi blue
				//then buy at close and cover at close.

bool bull = (HO[bar] < HC[bar]);
				bool bear = (HO[bar] > HC[bar]);
				
				// The first trade
				if (Positions.Count == 0){
					if ( bull ) 
						BuyAtClose( bar );
					else if( bear )
						ShortAtClose( bar );
				}
					// Subsequent trades
				else 
				{
					Position p = LastPosition;				
					if ( p.PositionType == PositionType.Long ) 
					{
						if ( bear ) 
						{
							SellAtClose( bar, p );
							ShortAtClose( bar );
						}
					}
					else if ( bull ) 
					{
						CoverAtClose( bar, p );
						BuyAtClose( bar );
					}
				}	
			}
		}
	}
}[/CODE]

P.S. Are you looking at Heiken Ashi bars for an external symbol to make the trading decisions?
[QUOTE]DataSeries Hclose = GetExternalSymbol("msft",true).Close;[/QUOTE]

sofia

#3

12/10/2011 5:11 PM

Hi Eugene,

Thanks for your help. Yes I am looking for Heiken Ashi bars for external symbol to buy and sell.
Not necessarily msft but wanted to try out different high cap equities and currency etfs to buy and sell indices.I will follow your instructions regarding code next time.

I also have another question, I recently downloaded "Active trader strategy pack" which has compiled code.
Since I don't want them, I tried to delete them and I cannot do it.
How do I delete those strategies. The delete switch on WL6.2 seems to be inactive when I select those strategies.

Best regards,

Sofia

Eugene

#4

12/11/2011 12:17 AM

OK, let's see how you would do it:

1. Define an external symbol's Bars like you did in your code before this section:

Let's say:

2. In this section, replace the DataSeries that point to the current Bars object, with references to your external symbol's corresponding DataSeries.

Hint: keep in mind that "Open" etc. are the short for "Bars.Open" etc. and make the necessary corrections (total: 7) on the 4 lines of code.

Result:

Uninstall the Extension itself. You can't remove or edit a part of compiled strategy DLL.

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Color:

[QUOTE]Yes I am looking for Heiken Ashi bars for external symbol to buy and sell.[/QUOTE]
OK, let's see how you would do it:

1. Define an external symbol's Bars like you did in your code [i]before[/i] this section:
[CODE]// Create Heikin-Ashi series[/CODE]
Let's say:
[CODE]Bars ext = GetExternalSymbol("MSFT",true);[/CODE]
2. In this section, replace the DataSeries that point to the current Bars object, with references to your external symbol's corresponding DataSeries.
[CODE]DataSeries HO = ext.Open + 0;
//etc.[/CODE]
[i]Hint:[/i] keep in mind that "Open" etc. are the short for "Bars.Open" etc. and make the necessary corrections (total: 7) on the 4 lines of code.

Result:
[CODE]using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{
	public class MyStrategy : WealthScript
	{
		protected override void Execute()
		{
			Bars ext = GetExternalSymbol("MSFT",true);
			Bars bars = new Bars( ext.Symbol.ToString() + " (Heikin-Ashi)", BarScale.Daily, 0 );
    
			// Create Heikin-Ashi series
			DataSeries HO = ext.Open + 0;
			DataSeries HH = ext.High + 0;
			DataSeries HL = ext.Low + 0;         
			DataSeries HC = (ext.Open + ext.High + ext.Low + ext.Close) / 4;
    
			// Build the Bars object
			for (int bar = 1; bar < Bars.Count; bar++)
			{
				double o1 = HO[bar-1]; 
				double c1 = HC[bar-1]; 
				HO[bar] = ( o1 + c1 ) / 2; 
				HH[bar] = Math.Max( HO[bar], High[bar] ); 
				HL[bar] = Math.Min( HO[bar], Low[bar] );             
        
				bars.Add( Bars.Date[bar], HO[bar], HH[bar], HL[bar], HC[bar], Bars.Volume[bar]);
			}
			
			bars = Synchronize(bars);
			ChartPane extPane = CreatePane( 40,true,true );
			PlotSymbol( extPane, ext, Color.Blue, Color.Red );
			
			for(int bar = GetTradingLoopStartBar(3); bar < Bars.Count; bar++)
			{
				//If previous candle is Heiken Ashi red and current candle is Heiken Ashi blue
				//then buy at close and cover at close.

bool bull = (HO[bar] < HC[bar]);
				bool bear = (HO[bar] > HC[bar]);
				
				// The first trade
				if (Positions.Count == 0){
					if ( bull ) 
						BuyAtClose( bar );
					else if( bear )
						ShortAtClose( bar );
				}
					// Subsequent trades
				else 
				{
					Position p = LastPosition;				
					if ( p.PositionType == PositionType.Long ) 
					{
						if ( bear ) 
						{
							SellAtClose( bar, p );
							ShortAtClose( bar );
						}
					}
					else if ( bull ) 
					{
						CoverAtClose( bar, p );
						BuyAtClose( bar );
					}
				}	
			}
		}
	}
}[/CODE]

[QUOTE]I also have another question, I recently downloaded "Active trader strategy pack" which has compiled code.
Since I don't want them, I tried to delete them and I cannot do it.[/QUOTE]
Uninstall the Extension itself. You can't remove or edit a part of compiled strategy DLL.

sofia

#5

12/11/2011 1:43 PM

Hi Eugene,

Thanks, I tried compiling your code for both cases(i.e first code and also the second code with external symbol) but I only got one trade, it looks like the program won't sample all bars only first few. Then it stops.i.e it does not progress through time.

so I removed

I also had to update the buy and sell original code.

Here is the code for buy and sell. It seem to work good for 30min scale for US indices based on euro (FXE) movement.
But mot sure if this is duplicating the conditionals for Heiken Ashi.Better results can be obtained using moving average etc but here is the sample code.

Thanks,

Sofia

Size:

Color:

Hi Eugene,

Thanks, I tried compiling your code for both cases(i.e first code and also the second code with external symbol) but I only got one trade, it looks like the program won't sample all bars only first few. Then it stops.i.e it does not progress through time.

so I removed
[CODE]Bars ext = GetExternalSymbol("MSFT",true);			Bars bars = new Bars( ext.Symbol.ToString() + " (Heikin-Ashi)", BarScale.Daily, 0 );[/CODE]

I also had to update the buy and sell original code.

Here is the code for buy and sell. It seem to work good for 30min scale for US indices based on euro (FXE) movement.
But mot sure if this is duplicating the conditionals for Heiken Ashi.Better results can be obtained using moving average etc but here is the sample code.
[CODE]
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies
{	
	public class MyStrategy : WealthScript	
	{		
		protected override void Execute()		
		{			
		
			DataSeries Hclose = GetExternalSymbol("fxe",true).Close;
			DataSeries Hopen = GetExternalSymbol("fxe",true).Open;
			DataSeries Hhigh = GetExternalSymbol("fxe",true).High;
			DataSeries Hlow = GetExternalSymbol("fxe",true).Low;
			
			DataSeries HO = Hclose + 0;
			DataSeries HC = Hclose + 0;
			DataSeries HH = Hhigh + 0;
			DataSeries HL = Hlow + 0;
			//create Heiken-Ashi Series
			for (int bar = 1;bar < Bars.Count; bar++)
			{
				HC[bar] = (Hopen[bar]+Hhigh[bar]+Hlow[bar]+Hclose[bar])/4;
			//	HC[bar] = (Hhigh[bar]+Hlow[bar])/2;
				HO[bar] = (Hopen[bar-1]+Hclose[bar-1])/2;
				HH[bar] = Math.Max(HO[bar],High[bar]);
				HL[bar] = Math.Min(HO[bar],Low[bar]);
			
				
				
			}

////////////////
			
			for (int bar = 1; bar < Bars.Count; bar++)	
			{
				bool bull = (HO[bar] < HC[bar]);				
				bool bear = (HO[bar] > HC[bar]);
			
			
				if (IsLastPositionActive)
				{
					// Exit rules
					if( bear ){
						SellAtMarket( bar+1, LastPosition, " Exit Long" );
					
					}
     
				}
				else 
				{
					// Entry rules
					if( bull )
					{
						BuyAtMarket( bar+1, "Long Entry" );
					
					}	
				}
			}
			
			
			
			
			
			
			
			
			
			
			
			
			
				///////////////
			
			}	
		}
	}

[/CODE]

Thanks,

Sofia

Eugene

#6

12/11/2011 2:37 PM

The code above assumes Daily bar scale. Next time don't hesitate to mention that you like to use it on different bar scales.

You should not remove arbitrary parts of code. Instead, modify this line:
Bars bars = new Bars( ext.Symbol.ToString() + " (Heikin-Ashi)", BarScale.Daily, 0 );

sofia

#7

12/11/2011 3:47 PM

Eugene,

Yes I tried daily barscale, but it won't give more than one result.
The issues I mentioned were for daily barscale.

Thanks again.

Regards,

Sofia