Relative Strength Mansfield - Wealth Lab Forum

Relative Strength Mansfield

Author: ecorderob

Creation Date: 10/11/2010 12:07 PM

Wealth Lab » Technical Indicators » Relative Strength Mansfield

ecorderob

10/11/2010 12:07 PM

Hi,

I have this indicator (Relative Strength Mansfield) to compare the relative strength of one value with the S&P500

CODE:
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It is executed in WEEKLY scale and it usually works ok, but when I try to run it against some of the futures imported from PiTrading or TradingBlox, I get one exception: The given key was not present int the dictionary.

Why can this be happening? Could I solve it somehow?

Thanks a lot,

Enrique

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Color:

Hi,

I have this indicator (Relative Strength Mansfield) to compare the relative strength of one value with the S&P500

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

namespace WealthLab.Strategies
{
    public class Indicador : WealthScript
    {
        private DataSeries getRSMansfieldSeries(bool print)
        { 
            DataSeries sp500 = GetExternalSymbol("^GSPC", true ).Close;
            DataSeries serRelacion = Bars.Close / sp500;
            DataSeries basePrice = SMA.Series(serRelacion, 52);
            DataSeries rsMansfield = (serRelacion/basePrice -1)*10;
            
            if (print){
                ChartPane mansfieldPane = CreatePane(20, false, true);
                PlotSeriesOscillator(mansfieldPane, rsMansfield, 0, 0, Color.LightGreen, Color.LightCoral, Color.Black, LineStyle.Solid, 1); 
                DrawHorzLine( mansfieldPane, 0, Color.Gray, LineStyle.Solid, 1 );
                rsMansfield.Description = "Rs Mansfield";
            }
            return rsMansfield;
        }

protected override void Execute()
        {
            PadBars( 10 ); 
            HideVolume();
            SetBarColors( Color.Silver, Color.Silver);

DataSeries rsMansfield = this.getRSMansfieldSeries(true);
        }
    }
}[/CODE]

Why can this be happening? Could I solve it somehow?

Thanks a lot,

Enrique

Eugene

10/11/2010 12:33 PM

I'm afraid it might be slightly more than a PiTrading thing. Try this:

CODE:
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where ds = your DataSet containing ^GSPC.

Do you still get the error message in runtime?

The key here is that the DataSet is a non-PiTrading/non-TradingBlox one.