Mark-peeking-Indicators

CODE:

using WealthLab.Backtest;
using WealthLab.Core;
using WealthLab.Community;

namespace WealthScript2 
{
    public class MyStrategy : UserStrategyBase
    {
        //Initialize
        public override void Initialize(BarHistory bars)
        {
         shl = new SwingHiLo(bars.High,13,3.50,13,3.50,0.00,false,false,false,false);
         PlotIndicator(shl);
         StartIndex = 14;
        }

        //Execute
        public override void Execute(BarHistory bars, int idx)
        {
         if (LastPosition?.IsOpen == true)
         {
            if (shl[idx] < shl[idx - 1])
               PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
         }
         else
         {
            if (shl[idx] > shl[idx - 1])
               PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
         }
        }

      //private members
      private SwingHiLo shl;
    }
}

QUOTE:
These series display 'peaked' values from the (right side) swing bar until the bar since that is true to the RightBars or RightReversalAmount value. To overcome this, the returned series could be used in conjunction with associated methods IsSwingHi() and IsSwingLo(). Alternative a series could be built completely using these methods.

QUOTE:
... fix the problem or if it's not possible, just expel such indicator because it's misleading.

QUOTE:
I remember many sad stories with "peeking" strategies through all the versions of WL.

Many users, full of hope, who discovered the "peeking issue" much too late - heavily disappointed.

So it is a good idea to get it better with WL7!

QUOTE:

GlitchA
May 29, 2021, 07:20 PM - 4 hours ago
#13
WL operates like this by default. There’s no need to do the kind of manipulation you deceived.

QUOTE:
I tried to develop a solution to this issue in WL6.9 (I have not yet started running strategies in WL7), by re-defining “bars” so the indicator generated signals based on a bar prior to the most recently completed bar occurring in real time. So any signal generated is, in effect, “stale” but the results are still quite good.

CODE:
// Initialize
...
         //Variables: (TimeSeries, LeftBars, LeftRvrslAmt, RightBars, RightRvrslAmt, EqualPrcThreshold, %mode, SetLeftSwings, SetOuterSwings, SetSteppedSeries)
         swLo = new SwingLo(bars.Low, 2, 0, 1, 0, 1E-06, true, false, false, true);
...
...
// Execute
double stp = swLo[idx-1] -0.01;      //lookback period = RighttBars
...

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

namespace WealthScript123 
{
    public class MyStrategy : UserStrategyBase
    {   
        public override void Initialize(BarHistory bars)
        {
         int rightbars = 1;
         IndicatorBase swLo = new SwingLo(bars.Low, 2, 0, rightbars, 0, 1E-06, true, false, false, true);
         PlotIndicator(swLo);
         
         TimeSeries swLo1 = swLo >> rightbars;   // use swLo1 in the trading rules
         PlotTimeSeries(swLo1, swLo1.Description, "Price");
        }

        //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
               double stp = swLo1[idx] - 0.01;   
            }
        }

        //declare private variables below
      TimeSeries swLo1;      // non-peeking SwingLo series
    }
}

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Data;
using WealthLab.Indicators;

namespace WealthScript2
{
   public class MyStrategy : UserStrategyBase
   {
      //Initialize
      public override void Initialize(BarHistory bars)
      {
         int rightbars = 13;
         shl = new SwingHiLo(bars.High, 13, 3.50, rightbars, 3.50, 0.00, false, false, false, false);
         PlotIndicator(shl);
         StartIndex = 14;
         shlshifted = shl >> rightbars;
      }

      //Execute
      public override void Execute(BarHistory bars, int idx)
      {
         if (LastPosition?.IsOpen == true)
         {
            if (shlshifted[idx] < shlshifted[idx - 1])
               PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
         }
         else
         {
            if (shlshifted[idx] > shlshifted[idx - 1])
               PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
         }
      }

      //private members
      SwingHiLo shl;
      TimeSeries shlshifted;
   }
}

CODE:
swLo = new SwingLo(bars.Low, 2, 0, 1, 0, 1E-06, true, false, false, true);

QUOTE:
Side note: Can the developers please allow users to choose which discussions (other than the ones they created) they get notified about when new comments get posted in them.