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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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