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Jose
How do you handle the situation if the DayOfWeek() is
not a trading day because of a Holiday? As I recall,
some MS functions are very slow. I think PREV is one
of these. What are the slow MS functions?
thanks much, hg
--- In equismetastock@xxxxxxxxxxxxxxx, "Jose" <josesilva22@xxxx>
wrote:
>
> MetaStock generally reads and processes data from left to right.
>
> MS signals are plotted sequentially in this West-East direction,
and
> once any data is plotted on a chart, there is no way to coerce
> MetaStock to go back and erase past signals.
>
> Or is there...?
>
> By nesting a couple of hindsight functions such as ZigZag() and
Peak()
> , this is now possible.
>
> One of the holy grails of MetaStock coding has been to be able to
> modify past signals, such as (for pattern-recognition purposes):
> "Plot last Friday only if following Monday's Close is up".
>
> Here is some magic MS code that will do just that:
>
> ---8<-----------------
>
> { Friday signal }
> signal:=DayOfWeek()=5;
>
> { Monday up on Friday's Close }
> confirm:=DayOfWeek()=1 AND C>Ref(C,-1);
>
> { Extend signal & confirmation }
> x:=ValueWhen(1,signal OR confirm,signal-confirm);
>
> { Magic: forget last Friday if Monday is down }
> hindsight:=PeakBars(1,Zig(x,1,$),1)=0;
>
> { Plot in own window }
> hindsight
>
> ---8<-----------------
>
>
> And here is another bit of magic - detecting and plotting true end-
of-
> week signals:
>
> ==========
> Week's end
> ==========
> ---8<---------------------
>
> { Signals true end of week:
> confirms signal at start of following week,
> and signals end of week in retrospect }
> { http://www.metastocktools.com }
>
> day:=DayOfWeek();
> WeekStart:=day<Ref(day,-1);
> WeekEnd:=PeakBars(1,-Zig(WeekStart-.5,1,$),1)=0;
>
> WeekEnd
>
> ---8<---------------------
>
>
> jose '-)
> http://www.metastocktools.com
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