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also I think the line
x=IIf(x=1,O,IIf(x=2,H,IIf(x=3,L,IIf(x=5,WC,C))));
should read
x=IIf(x==1,O,IIf(x==2,H,IIf(x==3,L,IIf(x==5,WC,C))));
Rick
--- In amibroker@xxxxxxxxxxxxxxx, "John" <jar5499297@xxxx> wrote:
>
> Guno,
>
> Your Param's are incorrect.
> In MS, Input("Prompt Text",Min,Max,default)
> In Ami, Param(( ''name'', default, min, max, step, sincr = 0 )
>
> So your formula will change from:
>
> //{ User inputs }
> //pds=Input("EMA periods",1,252,21);
> pds = Param("EMA periods", 1, 252, 21);
>
> //pdsBak=Input("lookback periods",1,252,42);
> pdsBak=Param("lookback periods",1,252,42);
>
> //x=Input("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,5,4);
> x=Param("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,5,4);
>
> //Plot1=Input("[1]AutoEnvelope, [2]Long signals, [3]All
> signals",1,3,1);
> Plot1=Param("[1]AutoEnvelope, [2]Long signals, [3]All
> signals",1,3,1);
>
> //delay=Input("Entry/Exit signals delay",0,5,0);
> delay=Param("Entry/Exit signals delay",0,5,0);
>
> To:
>
> pds = Param("EMA periods",21,2,252,2);
> pdsBak = Param("lookback periods",42,2,252,2);
> x = Param("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,1,5,4);
> Plot1 = Param("[1]AutoEnvelope, [2]Long signals, [3]All
> signals",1,1,3,1);
> delay = Param("Entry/Exit signals delay",0,0,5,1);
>
>
> Hope this helps,
>
> John
>
> --- In amibroker@xxxxxxxxxxxxxxx, "gunovanengel"
<gunovanengel@xxxx>
> wrote:
> >
> > Hi Swingtrader
> >
> > Here my Amibroker interpretation of the Code
> >
> > Kindest Regards
> > Guno
> >
> > //====================
> > //Elder's AutoEnvelope
> > //====================
> > //---8<---------------------------
> >
> > //{Dr A. Elder's AutoEnvelope interpretation v1.0}
> > //{ www.elder.com/MetaStock/AutoEnvelope.htm }
> > //{ http://www.metastocktools.com }
> > //Modified for AmiBroker by Guno van Engel
> >
> > //{ User inputs }
> > //pds=Input("EMA periods",1,252,21);
> > pds = Param("EMA periods", 1, 252, 21);
> >
> > //pdsBak=Input("lookback periods",1,252,42);
> > pdsBak=Param("lookback periods",1,252,42);
> >
> > //x=Input("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,5,4);
> > x=Param("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,5,4);
> >
> > //Plot1=Input("[1]AutoEnvelope, [2]Long signals, [3]All
> > signals",1,3,1);
> > Plot1=Param("[1]AutoEnvelope, [2]Long signals, [3]All
> > signals",1,3,1);
> >
> > //delay=Input("Entry/Exit signals delay",0,5,0);
> > delay=Param("Entry/Exit signals delay",0,5,0);
> >
> > //{ Price field }
> > WC = TimeFrameGetPrice( "C", inWeekly, -1 ); // gives you
previous
> > week Open price
> > x=IIf(x=1,O,IIf(x=2,H,IIf(x=3,L,IIf(x=5,WC,C))));
> >
> > //{ Envelope bands }
> > AvgX=EMA(x,pds);
> > hiAvg=HHV(H,pdsBak);
> > loAvg=LLV(L,pdsBak);
> > shift= EMA(IIf(hiAvg > AvgX, hiAvg - AvgX, AvgX - loAvg),pds);
> > UpperBand=AvgX+shift;
> > LowerBand=AvgX-shift;
> >
> > //{ Envelope signals }
> > In=Cross(x,LowerBand);
> > Out=Cross(x,UpperBand);
> > Init=Cum(In + Out > - 1)==1;
> > InInit=Cum(In)==1;
> > flag=BarsSince(Init OR In) < BarsSince(Init OR Out)+InInit;
> > signals=Ref((InInit AND Hold(InInit=0,2) OR flag AND Hold
> > (flag=0,2)) -(flag=0 AND Hold(flag,2)),-delay);
> >
> > //{ Plot envelope on price chart }
> > UpBand = IIf(PPlot=1,UpperBand,IIf(Plot1=2,signals,In-Out));
> > MidBand = IIf(PPlot=1,AvgX,IIf(Plot1=2,0,0));
> > LowBand = IIf(PPlot=1,LowerBand,IIf(Plot1=2,signals,In-Out));
> >
> > Plot(UpBand ,"UpperBand",colorBlack,styleLine | styleThick);
> > Plot(MidBand , "MidleBand", colorBlack, styleLine | styleThick );
> > Plot(LowBand, "LowerBand", colorBlack, styleLine | styleThick );
> > Plot(C , "Price", colorBlack, styleCandle | styleThick );
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "swingtrader_se"
> > <swingtrader_se@xxxx> wrote:
> > >
> > > Can anyone please translate this formula to Amibroker?
> > > I would be very grateful...
> > > ====================
> > > Elder's AutoEnvelope
> > > ====================
> > > ---8<---------------------------
> > >
> > > {Dr A. Elder's AutoEnvelope interpretation v1.0}
> > > { www.elder.com/MetaStock/AutoEnvelope.htm }
> > > { http://www.metastocktools.com }
> > >
> > > { User inputs }
> > > pds:=Input("EMA periods",1,252,21);
> > > pdsBak:=Input("lookback periods",1,252,42);
> > > x:=Input("use: Open=1, High=2, Low=3, Close=4, WClose=5",1,5,4);
> > > plot:=Input("[1]AutoEnvelope, [2]Long signals, [3]All
> > > signals",1,3,1);
> > > delay:=Input("Entry/Exit signals delay",0,5,0);
> > >
> > > { Price field }
> > > x:=If(x=1,O,If(x=2,H,If(x=3,L,If(x=5,WC(),C))));
> > >
> > > { Envelope bands }
> > > Avg:=Mov(x,pds,E);
> > > hiAvg:=HHV(H,pdsBak);
> > > loAvg:=LLV(L,pdsBak);
> > > shift:=
> > > Mov(If(hiAvg>Avg,hiAvg-Avg,Avg-loAvg),pds,E);
> > > UpperBand:=Avg+shift;
> > > LowerBand:=Avg-shift;
> > >
> > > { Envelope signals }
> > > In:=Cross(x,LowerBand);
> > > Out:=Cross(x,UpperBand);
> > > Init:=Cum(In+Out>-1)=1;
> > > InInit:=Cum(In)=1;
> > > flag:=BarsSince(Init OR In)
> > > <BarsSince(Init OR Out)+InInit;
> > > signals:=Ref((InInit AND Alert(InInit=0,2)
> > > OR flag AND Alert(flag=0,2))
> > > -(flag=0 AND Alert(flag,2)),-delay);
> > >
> > > { Plot envelope on price chart }
> > > If(plot=1,UpperBand,If(plot=2,signals,In-Out));
> > > If(plot=1,Avg,If(plot=2,0,0));
> > > If(plot=1,LowerBand,If(plot=2,signals,In-Out))
> > >
> > > ---8<---------------------------
> > >
> > >
> > > http://www.metastocktools.com
> > >
> >
>
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