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One way to code this is as below ...
One could of course code in separate "Use" optimizable variables for each of the indicators to allow them to be independently used or not on the buy / sell side.
The default values in the optimization statements below were arrived at from the best results based on CAR - MDD over the entire life of a common Index using daily data. Notice that the optimization process determined NOT to use the MACD indicator i.e. MACDUse = 0 but did employ the other two.
RSILen = Optimize("RSILen", 43, 1, 100, 1);
RSIUse = Optimize("RSIUse", 1, 0, 1, 1);
RSIx = RSI(RSILen);
RSIBuy = RSIx > Ref(RSIx, -1) OR RSIUse == 0;
RSISell = RSIx < Ref(RSIx, -1) OR RSIUse == 0;
StoLen1 = Optimize("StoLen1", 16, 1, 100, 1);
StoLen2 = Optimize("StoLen2", 25, 1, 100, 1);
StoLen3 = Optimize("StoLen3", 99, 1, 100, 1);
StoUse = Optimize("StoUse", 1, 0, 1, 1);
StoK = StochK(StoLen1, StoLen2);
StoD = StochD(StoLen1, StoLen2, StoLen3);
StoBuy = StoK > StoD OR StoUse == 0;
StoSell = StoK < StoD OR StoUse == 0;
MACDLen1 = Optimize("MACDLen1", 32, 1, 100, 1);
MACDLen2 = Optimize("MACDLen2", 60, 1, 100, 1);
MACDLen3 = Optimize("MACDLen3", 48, 1, 100, 1);
MACDUse = Optimize("MACDUse", 0, 0, 1, 1);
MACDx = MACD(MACDLen1, MACDLen2);
MACDs = Signal(MACDLen1, MACDLen2, MACDLen3);
MACDBuy = MACDx > MACDs OR MACDUse == 0;
MACDSell = MACDx < MACDs OR MACDUse == 0;
Buy = RSIBuy AND StoBuy AND MACDBuy;
Sell = RSISell AND StoSell AND MACDSell; ----- Original Message ----- From: longarm61
Date: Thursday, January 8, 2009 12:49 am
Subject: [amibroker] Re: Optimization Question
To: amibroker@xxxxxxxxxxxxxxx
> Thanks, appreciate it. If it's not too much trouble, could you
> (or
> someone) give me a quick example of how exactly that would be coded?
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, ftonetti@xxx wrote:
> >
> > One way to do this is to have an on/off ( 1/0 ) optimizable
> variable for each indicator so that individual indicators are
> either
> used or not and then let optimzation make the determination.
> >
> > ----- Original Message -----
> > From: longarm61
> > Date: Wednesday, January 7, 2009 8:25 pm
> > Subject: [amibroker] Optimization Question
> > To: amibroker@xxxxxxxxxxxxxxx
> >
> > > Is there a way to optimize a group of indicators so that the
> > > results
> > > not only give you the optimized values, but also tell you
> which
> > > indicators you'd have better off not using at all? Something
> > > like
> > > this:
> > >
> > > Best return: Indicator1=80, Indicator2=NO, Indicator3=50,
> > > Indicator4=NO
> > >
> > > Thanks in advance,
> > >
> > > Grant
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> >
>
>
>
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