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kut2k2
LastValue(A) is brilliant for applying the current (last) value of "A" as a
constant to any function. What it will not do is apply the value of "A" 100
bars ago to any required function also 100 bars ago. When back testing and
wishing to use a changing value as a constant then the code I suggested will
oblige in some situations.
You only need to look at the two outputs ("B" and "D") from the following
simple example to see that there is a vast difference between the two
signals created. I think you'll find that the only bar where the signals
are identical is the last bar. Where and when you might use one or the other
is entirely up to you, but before you can do that you must understand why
there is a difference. I don't mean why the code works the way it does but
how it can be used knowing that it works the way it does.
A:=CMO(C,9);
A:=LastValue(A-PREV+PREV);
D:=LastValue(A);
B; D;
Roy
----- Original Message -----
From: "kut2k2" <no_reply@xxxxxxxxxxxxxxx>
To: <equismetastock@xxxxxxxxxxxxxxx>
Sent: Monday, April 28, 2003 6:21 PM
Subject: Re: [EquisMetaStock Group] HHV(close,n)
> --- In equismetastock@xxxxxxxxxxxxxxx, "Roy Larsen" <rlarsen@xxxx>
> wrote:
> > Try this. It works with some functions and not others.
> >
> > A:=Int(Abs(CMO(C,9))/10)+1;
> > B:=LastValue(A-PREV+PREV);
> > D:=LastValue(A);
A; D;
> >
> > Roy
>
> Hi,
>
> I've seen this before and I'm puzzled. Why is it necessary to add and
> subtract PREV when LastValue(A) seems to work well all by itself?
> Thanks.
> kut2k2
>
> >
> > ----- Original Message -----
> > From: "ihh3" <no_reply@xxxxxxxxxxxxxxx>
> > To: <equismetastock@xxxxxxxxxxxxxxx>
> > Sent: Tuesday, October 08, 2002 9:35 PM
> > Subject: [EquisMetaStock Group] HHV(close,n)
> >
> >
> > > N:=Input("A",1,10,5);
> > > A:=Abs(CMO(C,9))/10;
> > > { N:=A; ??? }
> > > HHV(C,N);
> > > {This variable or expression must contain only constant data}
> > >
> > > the hhv(c,opt1); is permitted.
> > > the hhv(c,input("a",1,10,5)); is permitted.
> > > but hhv(c,abs(cmo(c,9))/10); in not.
> > >
> > > anyone know how to have a multi-period HHV?
> > >
>
>
>
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>
>
>
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