[amibroker] Re: /*Breakout ROC*/

["Phsst" <phsst@xxxxxxxxx>]

Thanks Dimitris,

I had already begun thinking in terms of ROC and Slope enhancements
(actually these things come in my dreams and when I wake up I feel
like I've been coding / debugging for hours... only nothing has
changed in the afl on my computer :-().

Phsst

--- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx>
wrote:
> Phsst,
> Instead of coeff you may think in ROC terms.
> Let us calculate the necessary ROC for a Support or a Resistance 
> breakout.
> We have an advantage here : Trendlines are already defined and their 
> next bar value is known [if of course the line will be the same...] 
> as nextS or nextR, with its x just replaced by x+1.
> Explore the database for the n=1 last quotations
> /*Breakout ROC*/
> x = Cum(1);per = 3;s1=L;s11=H;
> pS = TroughBars( s1, per, 1 ) == 0;
> endt=LastValue(ValueWhen( pS, x ,1));
> startt=LastValue(ValueWhen( pS, x ,2));
> dtS =endt-startt;
> endS = LastValue((ValueWhen( pS, s1,1) ));
> startS = LastValue(( ValueWhen( pS, s1 ,2)));
> aS = (endS-startS)/dtS;bS = endS;
> trendlineS = aS * ( x -endt ) + bS;
> nextS=aS * ( x+1 -endt ) + bS;
> pR = PeakBars( s11, per, 1 ) == 0;
> endt1= LastValue(ValueWhen( pR, x, 1));
> startt1=LastValue(ValueWhen( pR, x, 2 ));
> dtR =endt1-startt1;
> endR = LastValue(ValueWhen( pR, s11, 1 ) );
> startR = LastValue( ValueWhen( pR, s11, 2 ));
> aR = (endR-startR)/dtR;bR = endR;
> trendlineR = aR * ( x -endt1 ) + bR;
> nextR=aR * ( x+1 -endt1 ) + bR;
> SupRoc=100*(-1+nextS/C);
> ResRoc=100*(-1+nextR/C);
> TouchThreshold=1;// clibrate the touch %
> Filter=C>=nextS AND C<=nextR;
> AddColumn(C,"C");
> AddColumn(nextR,"nextR");
> AddColumn(ResRoc,"Resistance Breakout % >=");
> AddColumn(ResRoc<=TouchThreshold,"Resistance touch",1.0);
> AddColumn(nextS,"nextS");
> AddColumn(SupRoc,"Support Breakout % <=");
> AddColumn(SupRoc>=-TouchThreshold,"Support touch",1.0);
> 
> Note 1. I search only for stocks between the Support and the 
> Resistance line .
> Note 2. The crucial hypothesis is that the trendlines will remain the 
> same until tomorrow.
> Note 3.TouchThreshold=1 means your Close is closer than 1% to next 
> bar Support or Resistance .
> I hope it will help the research.
> On the other side, the 
> http://groups.yahoo.com/group/amibroker/message/50662
> will give you the opportunity to recall recent trendlines formations 
> and see what was correct and what was wrong for the decisions of the 
> past.
> Dimitris Tsokakis


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