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Ron
Using Alert() is also preferable to using Cross() for the very same reason -
Cross() adds one to the N/A count as well. These are small things but they
can (and do) have an impact when back-testing historical data.
Roy
> Thanks Roy.
>
> Yet another lesson learned.
>
> Ron
>
> Roy Larsen wrote:
>
> > Keith
> >
> > What you want can be done in a number of ways but here's the way I
> > convert a
> > multiple bar true signal into a single bar true, i.e. only the leading
> > edge
> > of a signal is used as the active signal.
> >
> > A:=L=LLV(L,5);
> > A AND Alert(A=0,2);
> >
> > By using Alert() in this way, instead of the alternative with Ref()
below,
> > we do not add an "N/A" bar to the output signal. The code below uses
Ref()
> > and consequently has one more N/A period if displayed as an indicator
> > at the
> > left side of the chart. This can become a major issue when timing is
> > important with more complex formulas.
> >
> > A:=L=LLV(L,5);
> > A AND Ref(A,-1)=0;
> >
> > Roy
> >
> > ----- Original Message -----
> > From: "a" <keithld@xxxxxxxxxxx>
> > To: "equismetastock" <equismetastock@xxxxxxxxxxxxxxx>
> > Sent: Tuesday, October 29, 2002 4:03 PM
> > Subject: [EquisMetaStock Group] duplication of symbols in an Expert
> >
> >
> > I was trying to make an Expert for the Lowest Low last 5 bars
> > resulting in LLV,5 which sort of works but too good!.
> > for example in a downtrend, I end up with many bars indicated that are
> > correctly ,the lowest low last 5 bars, which makes the whole thing
> > useless.
> >
> > is there a way in Metastock coding I can say something like
> >
> > LLV,5 (but if yesterday was also a LLV,5-----disregard it
> > and only
> > show today as the LLV,5
> >
> > thanks Keith
> >
> >
> >
> >
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