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Preston
Well done.
Roy
----- Original Message -----
From: "pumrysh" <no_reply@xxxxxxxxxxxxxxx>
To: <equismetastock@xxxxxxxxxxxxxxx>
Sent: Thursday, September 11, 2003 5:27 AM
Subject: [EquisMetaStock Group] Re: Trace a line...Back in time
> Scoub,Roy,
>
> Here it is! That was fun...
>
> Preston
>
> {BarBack Z}
> {Will draw a line from one High to the next---back in time}
> {Reference highs are also displayed within the window}
> len:=Input("Periods for Ref High(Set > Barsback)",8,100,20);
> Signal:=Ref(H,-len);
> Barbk:=Input("Barsback High",1,100,8);
> Signal2:=Ref(H,-Barbk);
> LastBar:=Cum(1)=LastValue(Cum(1)-(len));
> bacdis1:=ValueWhen(1,LastBar,LastValue(Signal));
> 1stRefPnt:=Ref(Ref(bacdis1,-Barbk),Barbk);
> {end}
> bacdis2:=ValueWhen(1,LastBar,LastValue(Signal2));
> 2ndRefPnt:=Ref(Ref(bacdis2,-Barbk),Barbk);
> {end}
> {Line Plot }
> D1:=LastValue(Cum(1))-LastValue(LEN);
> {D1 is first high of line}
> D2:=LastValue(Cum(1))-LastValue(BARBK);
> {D2 is last high of line}
> P1:=1stRefPnt; {start-of-line data array}
> P2:=2ndRefPnt; {end-of-line data array}
> V1:=ValueWhen(1,D1,P1);
> V2:=ValueWhen(1,D2,P2);
> B1:=LastValue(Cum(1))-D1;
> B2:=LastValue(Cum(1))-D2;
> LINE:=V1-(BarsSince(Cum(1)=D1)*( (V1-V2)/(B1-B2)));
> LINE;
> 1stRefPnt;
> 2ndRefPnt;
>
>
>
>
> --- In equismetastock@xxxxxxxxxxxxxxx, pumrysh <no_reply@xxxx> wrote:
> > Roy,
> >
> > Thanks! Looking at the output of V1 and V2, I can see there is a
> > calculation problem. Let me see if I can figure it out.
> >
> > Preston
> >
> >
> >
> > --- In equismetastock@xxxxxxxxxxxxxxx, "Roy Larsen" <rlarsen@xxxx>
> > wrote:
> > > Preston
> > >
> > > > Here's scoub's original request:
> > > >
> > > > Those tops are from "high -20 days before" to " high-8 days
> > before".
> > > >
> > > > I read it as 8 days ago going back to 20 days ago which would
> be
> > 12
> > > > bars. Am I wrong?
> > >
> > > My mistake. Your lines are ending up negative on my test chart.
> > With my
> > > market opening in 90 minutes it will be some time before I can
> look
> > more
> > > closely at your code. I'm sure if you think through the mechanics
> > of drawing
> > > a straight line you'll spot the problem before I can get to it.
> > >
> > > Determine price and relative bar of the start of the line
> > > Determine price and bar of the end of the line.
> > > Divide the difference between two prices by the number of bars
> > between them
> > > to get the bar on bar increment/decrement. Easy to get this one
> bar
> > wrong.
> > > Determine bars to truncate by counting from end of line to end of
> > chart.
> > >
> > > Roy
>
>
>
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>
>
>
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