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mstt  
#1 Posted : Tuesday, May 19, 2015 9:46:24 PM(UTC)
mstt

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Joined: 7/25/2005(UTC)
Posts: 1,039

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To Jamaan

Please delete some or all of your MetaStock Forum mailbox messages so that I can replay to your PM. Alternatively you could email me at rlarsen@quik.co.nz. Thank you.

Roy (mstt)

mstt  
#2 Posted : Wednesday, May 20, 2015 5:07:51 AM(UTC)
mstt

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Joined: 7/25/2005(UTC)
Posts: 1,039

Was thanked: 57 time(s) in 54 post(s)

Hi Jamaan

In response to your message I looked previous exchanges and decided that the code below is probably what you were having a problem with on tick data.

 {ZigZag Volume Histogram}
 {Roy Larsen, 30/7/12}

N:=Input("ZigZag % Parameter",0,99,10);
A:=Zig(C,N,%);
B:=Ref(A,-1)>A AND Ref(A,1)>A OR
A>Ref(A,-1) AND A>Ref(A,1);
X:=A>ValueWhen(2,1,A); Z:=Cum(1);
 {Calculate/plot frame Volume}
D:=BarsSince(Ref(B,-1)+(Z=1))+1;
ExtFml("Forum.Sum",V,D)*X;
ExtFml("Forum.Sum",V,D)*(X=0);

I've eliminated the Forum DLL and replaced the Variable Sum function and replaced it with the last two lines of the following code. The use of PREV with LastValue() enables the basic Sum() function to recognize a variable Periods Parameter.

 {ZigZag Volume Histogram}
 {Roy Larsen, 2012-2015, 20/5/15}

N:=Input("ZigZag % Parameter",0,99,10);
A:=Zig(C,N,%);
B:=Ref(A,-1)>A AND Ref(A,1)>A OR
A>Ref(A,-1) AND A>Ref(A,1);
X:=A>ValueWhen(2,1,A); Z:=Cum(1);
 {Calculate/plot frame Volume}
D:=BarsSince(Ref(B,-1)+(Z=1))+1;
Sum(V,LastValue(D+PREV*0))*X;
Sum(V,LastValue(D+PREV*0))*(X=0);

Hope this helps.

Roy

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