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RE: [amibroker] Modified Dave Landry Scan



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Dave,

A cursory review shows you did not duplicate the last line of first section
< DLL= H<HHV(H,20)-1; > in second section. Could that be it?

--
Terry


| -----Original Message-----
| From: amibroker@xxxxxxxxxxxxxxx 
| [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Dennis And Lisa
| Sent: Friday, May 27, 2005 3:53 AM
| To: amibroker@xxxxxxxxxxxxxxx
| Subject: [amibroker] Modified Dave Landry Scan
| 
| 
| Hi everyone...this scan is the Dave Landry Pull Back Scan, 
| which attempts to catch pull backs coming off of 20 day highs 
| or 20 day lows. It only works for Long Positions, and fails 
| to work for Short Positions. Can someone please take a look 
| at  the "PullBack Scan" secion of the following formula to 
| see what I am doing wrong?
| 
| "DLL" thru "DLL8" are the Long Criteria, which work just 
| fine, but "DLS1" thru "DLS8" do not initialize. These atr the 
| Short Criteria.
| 
| thanks
| Dennis
| 
| ---------------------------------------------------------------------
| 
| NumColumns = 6;
| 
| Period = 14;
| 
| 
| // Determines trend direction using DMI indicators
| PDIFilter = PDI(period) > MDI(period);
| MDIFilter = MDI(period) > PDI(period);
| 
| // PULLBACK SCAN
| 
| DLL1 = Ref(H,-1)>HHV(H,20)-2 AND H<Ref(H,-1) ;
| DLL2 = Ref(H,-2)>HHV(H,20)-3 AND H<Ref(H,-2) ;
| DLL3 = Ref(H,-3)>HHV(H,20)-4 AND H<Ref(H,-3) ;
| DLL4 = Ref(H,-4)>HHV(H,20)-5 AND H<Ref(H,-4) ;
| DLL5 = Ref(H,-5)>HHV(H,20)-6 AND H<Ref(H,-5) ;
| DLL6 = Ref(H,-6)>HHV(H,20)-7 AND H<Ref(H,-6) ;
| DLL7 = Ref(H,-7)>HHV(H,20)-8 AND H<Ref(H,-7) ;
| DLL8 = Ref(H,-8)>HHV(H,20)-9 AND H<Ref(H,-8) ;  
| DLL= H<HHV(H,20)-1;
| 
| // THIS SECTION FAILS TO WORK....PLEASE HELP 
| DLS1 = Ref(L,-1)<LLV(L,20)-2 AND L>Ref(L,-1) ;
| DLS2 = Ref(L,-2)<LLV(L,20)-3 AND L>Ref(L,-2) ;
| DLS3 = Ref(L,-3)<LLV(L,20)-4 AND L>Ref(L,-3) ;
| DLS4 = Ref(L,-4)<LLV(L,20)-5 AND L>Ref(L,-4) ;
| DLS5 = Ref(L,-5)<LLV(L,20)-6 AND L>Ref(L,-5) ;
| DLS6 = Ref(L,-6)<LLV(L,20)-7 AND L>Ref(L,-6) ;
| DLS7 = Ref(L,-7)<LLV(L,20)-8 AND L>Ref(L,-7) ;
| DLS8 = Ref(L,-8)<LLV(L,20)-9 AND L>Ref(L,-8) ;
| // END OF SECTON THAT NEEDS TROUBLESHOOTING
| 
| // New 1 month low has occurred in the last 8 days?
| //NewHighs   = IIf(HHV(H,8) >= HHV(H,20), 1, 0);
| //NewLows    = LLV(L,8) <= LLV(L,20);
| 
| // Are moving averages lined up correctly?
| BullishMAs = IIf(MA(C,10) >= EMA(C,20) AND EMA(C,20) >= 
| EMA(C,30), 1, 0); BearishMAs = IIf(MA(C,10) <= EMA(C,20) AND 
| EMA(C,20) <= EMA(C,30), 1, 0);
| 
| Column0     = ADX(period);
| Column0Name = "ADX";
| 
| Column1     = IIf(PDIFilter AND (DLL AND(DLL1 OR DLL2 OR DLL3 OR DLL4
| OR DLL5 OR DLL6 OR DLL7 OR DLL8)) AND C>15 AND 
| LLV(V,50)>100000 AND BullishMAs, 1, 0); Column1Name = "Buy Signal";
| 
| Column2     = IIf(Column1 == 1, H + .125, 0);
| Column2Name = "Buy Stop";
| 
| Column3     = IIf(MDIFilter AND ( DLS1 OR DLS2 OR DLS3 OR DLS4 OR DLS5
| OR DLS6 OR DLS7 OR DLS8) AND C>15 AND LLV(V,50)>100000 AND 
| BearishMAs, 1, 0); Column3Name = "Sell Signal";
| 
| Column4     = IIf(Column3 == 1, L - .125, 0);
| Column4Name = "Sell Stop"; 
| 
| Column5     = HHV(H,20)-LLV(L,20);
| Column5Name = "10/20 Value";
| 
| // Filter based on ADX > 30 (trending) and if buy or sell has 
| triggered Filter = ADX(period) >= 30 AND (Column1 OR 
| Column3); Buy  = ADX(period) >=30 AND Column1; Sell = 
| ADX(period) >=30 AND Column3;
| 
| 
| 
| 
| 
| 
| 
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