[EquisMetaStock Group] Re: volume measure peak to trough

["Jose Silva" <josesilva22@xxxxxxxxx>]

And here's a version that doesn't need a variable-period MS dll:

---8<--------------------------

{ http://www.metastocktools.com }

pr:=5;  { Minimum % change }

tr:=TroughBars(1,C,pr)=0;
zz:=Zig(C,pr,%);
DwTrend:=zz<Ref(zz,-1);
DwVol:=Cum(If(DwTrend,V,0));

DwVol-ValueWhen(1,tr,DwVol)

---8<--------------------------

Beware, MetaStock's Cum() function accumulates errors with largish 
numbers.


jose '-)
http://www.metastocktools.com



--- In equismetastock@xxxxxxxxxxxxxxx, "Jose Silva" <josesilva22@xxxx> 
wrote:
>
> The easiest solution would be to use one of the two freely available 
> variable-period MS DLLs.
> 
> ---8<--------------------------
> 
> { http://www.metastocktools.com }
> 
> { Forum.dll from http://forum.equis.com
>    or ASI.dll from http://www.thedml.com
>    must be in:
>   ...\MetaStock\External Function DLLs\ folder.}
> 
> pr:=5;  { Minimum % change }
> pk:=PeakBars(1,C,pr)=0;
> zz:=Zig(C,pr,%);
> 
> DwVol:=ExtFml("Forum.VarSUM",V,BarsSince(pk)+1);
> {DwVol:=ExtFml("ASI.Sum",V,BarsSince(pk)+1);}
> 
> If(zz<Ref(zz,-1) OR pk,DwVol,0)
> 
> ---8<--------------------------
> 
> 
> jose '-)
> http://www.metastocktools.com
> 
> 
> 
> 
> --- In equismetastock@xxxxxxxxxxxxxxx, "cc48820" <ccloos@xxxx> 
wrote:
>
> I'm trying to calculate the average volume from peak to trough. The 
> code below produces the error:  This variable or expression must 
> contain only constant data.  Any ideas?
> 
> Thanks, cc
> 
> P1    :=  Peak(1, CLOSE, 5); {current peak}
> Pbars :=  PeakBars(1, C, 5); 
> T1    :=  Trough(1, CLOSE, 5); {current trough}
> Tbars :=  TroughBars(1, C, 5); 
> 
> If(P1 OR T1, Sum(Volume, Abs(pbars-tbars)) / Abs(pbars-tbars)),0)








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