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RE: [amibroker] Re: Schaff Trend Cycle code



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the bottom code works in Metastock.
 
al

Schaff Trend Cycle Oscillator
{ Schaff Trend Cycle Oscillator v1.0 }{ Automatic trigger levels }{ Also see: "MACD oscillator - Schaff Trend Cycle" }{ josesilva22@xxxxxxxxx }{ With thanks to Tim Straiton, www.stoploss.ch }

{ variables input }
pdsCy:=Input("Schaff cycle periods",2,252,10);
pdsSh:=Input("Short periods",1,252,10);
pdsLg:=Input("Long periods",2,2520,21);

{ Schaff Trend Cycle }
MCD:=Wilders(MP(),pdsSh)-Wilders(MP(),pdsLg);
ST:=(MCD-LLV(MCD,pdsCy))
 /(HHV(MCD,pdsCy)-LLV(MCD,pdsCy))*100;
STC:=Wilders(ST,pdsCy/2);

{ automatic trigger levels }
pk:=Ref(STC,-1)>STC AND Ref(STC,-1)>Ref(STC,-2);
pkVal:=If(pk,Ref(STC,-1),0);
pkAvg:=Cum(pkVal)/(Cum(pk)+.000001);
pkAvg:=If(pkAvg=0,100,pkAvg);
tr:=Ref(STC,-1)<STC AND Ref(STC,-1)<Ref(STC,-2);
trVal:=If(tr,Ref(STC,-1),0);
trAvg:=Cum(trVal)/(Cum(tr)+.000001);

{ plot on own window }
pkAvg;trAvg;STC

Schaff Trend Cycle Indicator

{ Schaff Trend Cycle Indicator v1.0 }{ Automatic trigger levels }{ Also see: "MACD oscillator - Schaff Trend Cycle" }{ josesilva22@xxxxxxxxx }{ With thanks to Tim Straiton, www.stoploss.ch }

{ variables input }
buffer:=Input("Long/Short buffer zone %",
 0,100,0)/100;
pdsCy:=Input("Schaff cycle periods",2,252,10);
pdsSh:=Input("Short periods",1,252,10);
pdsLg:=Input("Long periods",2,2520,21);

{ Schaff Trend Cycle }
MCD:=Wilders(MP(),pdsSh)-Wilders(MP(),pdsLg);
ST:=(MCD-LLV(MCD,pdsCy))
 /(HHV(MCD,pdsCy)-LLV(MCD,pdsCy))*100;
STC:=Wilders(ST,pdsCy/2);

{ Schaff Trend Cycle }
MCD:=Wilders(MP(),pdsSh)-Wilders(MP(),pdsLg);
ST:=(MCD-LLV(MCD,pdsCy))
 /(HHV(MCD,pdsCy)-LLV(MCD,pdsCy))*100;
STC:=Wilders(ST,pdsCy/2);

{ automatic trigger levels }
pk:=Ref(STC,-1)>STC AND Ref(STC,-1)>Ref(STC,-2);
pkVal:=If(pk,Ref(STC,-1),0);
pkAvg:=Cum(pkVal)/(Cum(pk)+.000001);
pkAvg:=If(pkAvg=0,100,pkAvg);
tr:=Ref(STC,-1)<STC AND Ref(STC,-1)<Ref(STC,-2);
trVal:=If(tr,Ref(STC,-1),0);
trAvg:=Cum(trVal)/(Cum(tr)+.000001);

{ STC crossover signals }
In:=Cross(pkAvg,STC);
Out:=Cross(STC,trAvg);
InInit:=Cum(In)=1;
Init:=Cum(In+Out>-1)=1;
flag:=BarsSince(Init OR In)
 < BarsSince(Init OR Out)+InInit;
signals:=(InInit AND Alert(InInit=0,2)
  OR flag AND Alert(flag=0,2))
   -(flag=0 AND Alert(flag,2));

{ trend support/resistance levels }
STCI:=If(flag,ValueWhen(1,signals,L*(1-buffer)),
 ValueWhen(1,signals=-1 OR Init,H*(1+buffer)));

{ alternative STC crossover signals method}
{bb:=BarsSince(Cross(STC,trAvg));
 bs:=BarsSince(Cross(pkAvg,STC));
 tb:=ValueWhen(1,Cross(STC,trAvg),H*(1+buffer));
 ts:=ValueWhen(1,Cross(pkAvg,STC),L*(1-buffer));
 STCI:=If(bb<bs,tb,ts);}

{ plot on price chart }
STCI


 

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