Two-Price-Panes-for-Heikin-Ashi-and-regular-price

Glitch8

( 7.81% )

2021-03-12T00:28:08Z - 2021-03-12T00:28:08Z ago

#1

We don't have a method to plot a BarHistory using a specific chart style, but we can add an enhancement to do this for Build 2.

0

Glitch8

( 7.81% )

2021-03-12T00:40:26Z - 2021-03-12T00:40:26Z ago

#2

For Build 2 this will do it ...

CODE:

        //Initialize
        public override void Initialize(BarHistory bars)
        {
         PlotBarHistoryStyle(bars, "BarPane", "Candlestick", Color.Navy);
        }

0

Best Answer

pestocat28

2021-03-19T21:24:07Z - 2021-03-19T21:24:07Z ago

#3

I see the Heikin-Ashi indicator now.
If I want to work with the Heikin-Ashi data, do build that my self or is there a way to get that from the chart?

0

Glitch8

( 7.81% )

2021-03-19T21:31:02Z - 2021-03-19T21:31:02Z ago

#4

We don't have anything code-wise to return H/A values, so at least for now you're on your own!

0

Eugene8

2021-03-20T05:34:36Z - 2021-03-20T05:34:36Z ago

#5

Maybe something like this might help for the time being?

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Drawing;
using System.Collections.Generic;

namespace WealthScript5 
{
    public class MyStrategy : UserStrategyBase
    {
      BarHistory ha;
         
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
         ha = new BarHistory("Heikin Ashi", bars.Scale);

         // Create Heikin-Ashi series
         TimeSeries HO = bars.Open + 0;
         TimeSeries HH = bars.High + 0;
         TimeSeries HL = bars.Low + 0;
         TimeSeries HC = bars.AveragePriceOHLC + 0;

         // Build the Bars object
         for (int bar = 0; bar < bars.Count; bar++)
         {
            if (bar == 0)
            {
               ha.Add(bars.DateTimes[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Volume[0]);
            }
            else
            {
               double o1 = bars.Open[bar - 1];
               double c1 = bars.Close[bar - 1];
               HO[bar] = (o1 + c1) / 2;
               HH[bar] = Math.Max(HO[bar], bars.High[bar]);
               HL[bar] = Math.Min(HO[bar], bars.Low[bar]);

               ha.Add(bars.DateTimes[bar], HO[bar], HH[bar], HL[bar], HC[bar], bars.Volume[bar]);
            }
         }

         PlotBarHistoryStyle(ha, "HAPane", "Candlestick", Color.Navy);

      }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
            if (!HasOpenPosition(bars, PositionType.Long))
            {
                //code your buy conditions here
            }
            else
            {
                //code your sell conditions here
            }
        }

        //declare private variables below

    }
}

0

pestocat28

2021-03-20T18:09:22Z - 2021-03-20T18:09:22Z ago

#6

Yes, I used my own code.
Thank you

0

mas4298

2024-01-13T15:01:24Z - 2024-01-13T15:01:24Z ago

#7

Hi,
Using the code above, is there any way to color the individual bars in the HAPane? I'm just looking for a short example.
Thanks,
Mike

0

Eugene8

2024-01-13T15:05:53Z - 2024-01-13T15:05:53Z ago

#8

You could for example modify the line that does the plotting like this:

CODE:

//PlotBarHistoryStyle(ha, "HAPane", "Candlestick", Color.Navy);
PlotBarHistoryStyle(ha, "HAPane", "Candlestick");

0

mas4298

2024-01-13T15:18:29Z - 2024-01-13T15:18:29Z ago

#9

Thanks, Eugene.

But is there another way to individually color the bars?

0

Cone8

( 24.56% )

2024-01-13T15:26:16Z - 2024-01-13T15:26:16Z ago

#10

CODE:
SetBarColor

0

mas4298

2024-01-13T15:42:52Z - 2024-01-13T15:42:52Z ago

#11

Thanks, Cone.

I've posted my code below. What am I doing wrong? Nothing shows up in the Heiken Ashi pane.

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Drawing;
using System.Collections.Generic;

namespace WealthScript5
{
   public class MyStrategy : UserStrategyBase
   {
      BarHistory ha;

      //create indicators and other objects here, this is executed prior to the main trading loop
      public override void Initialize(BarHistory bars)
      {
         ha = new BarHistory("Heikin Ashi", bars.Scale);

         // Create Heikin-Ashi series
         TimeSeries HO = new EMA(bars.Open, 14);
         TimeSeries HH = new EMA(bars.High, 14);
         TimeSeries HL = new EMA(bars.Low, 14);
         TimeSeries HC = new EMA(bars.Close, 14);

         // Build the Bars object
         for (int bar = 0; bar < bars.Count; bar++)
         {
            if (bar == 0)
            {
               ha.Add(bars.DateTimes[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Volume[0]);
            }
            else
            {
               double o1 = bars.Open[bar - 1];
               double c1 = bars.Close[bar - 1];
               HC[bar] = (HO[bar] +HH[bar] +HL[bar] +HC[bar]) /4.0;
               HO[bar] = (o1 + c1) / 2;
               HH[bar] = Math.Max(HH[bar], Math.Max(HO[bar], HC[bar]));
               HL[bar] = Math.Min(HL[bar], Math.Min(HO[bar], HC[bar]));

               ha.Add(bars.DateTimes[bar], HO[bar], HH[bar], HL[bar], HC[bar], bars.Volume[bar]);

               if (HC[bar] > HO[bar])
                  SetBarColor(ha, bar, WLColor.Green);
               else
                  SetBarColor(ha, bar, WLColor.Red);
               
            }
         }

         //PlotBarHistoryStyle(ha, "HAPane", "Candlestick", WLColor.Navy);
         PlotBarHistoryStyle(ha, "HAPane", "Candlestick");

      }

      //execute the strategy rules here, this is executed once for each bar in the backtest history
      public override void Execute(BarHistory bars, int idx)
      {
         if (!HasOpenPosition(bars, PositionType.Long))
         {
            //code your buy conditions here
         }
         else
         {
            //code your sell conditions here
         }
      }

      //declare private variables below

   }
}

0

Eugene8

2024-01-13T15:47:28Z - 2024-01-13T15:47:28Z ago

#12

Just do it the other way round:

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Drawing;
using System.Collections.Generic;

namespace WealthScript5
{
   public class MyStrategy : UserStrategyBase
   {
      BarHistory ha;

      public override void Initialize(BarHistory bars)
      {
         ha = new BarHistory("Heikin Ashi", bars.Scale);

         // Create Heikin-Ashi series
         TimeSeries HO = new EMA(bars.Open, 14);
         TimeSeries HH = new EMA(bars.High, 14);
         TimeSeries HL = new EMA(bars.Low, 14);
         TimeSeries HC = new EMA(bars.Close, 14);

         // Build the Bars object
         for (int bar = 0; bar < bars.Count; bar++)
         {
            if (bar == 0)
            {
               ha.Add(bars.DateTimes[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Open[0], bars.Volume[0]);
            }
            else
            {
               double o1 = bars.Open[bar - 1];
               double c1 = bars.Close[bar - 1];
               HC[bar] = (HO[bar] + HH[bar] + HL[bar] + HC[bar]) / 4.0;
               HO[bar] = (o1 + c1) / 2;
               HH[bar] = Math.Max(HH[bar], Math.Max(HO[bar], HC[bar]));
               HL[bar] = Math.Min(HL[bar], Math.Min(HO[bar], HC[bar]));

               ha.Add(bars.DateTimes[bar], HO[bar], HH[bar], HL[bar], HC[bar], bars.Volume[bar]);
            }
         }

         PlotBarHistoryStyle(ha, "HAPane", "Candlestick");

         for (int bar = 0; bar < bars.Count; bar++)
         {
            SetBarColor(ha, bar, (HC[bar] > HO[bar]) ? WLColor.Green : WLColor.Red);
         }

      }

      public override void Execute(BarHistory bars, int idx)
      {
      }
   }
}

1

mas4298

2024-01-13T15:49:34Z - 2024-01-13T15:49:34Z ago

#13

Thanks, Eugene. You guys offer excellent customer support!!

1