Consider this. I have two indicators on my chart. I select both then drag the Correlation function onto a new inner window. In order to verify this I write a custom function (below) and compare the two. Both have a lookback of 200 and no shift. The curves are way out. Why is this?

Curve 1 - select both securities and drag-n-drop Correlation function.

Curve 2 - custom as below

SEC1:=Security("C:\MetaStock\Forex\AUDUSD", C);
SEC2:=Security("C:\MetaStock\Australia\ASX 200\^AXJO", C);
COR:=Correl(SEC2, SEC1, 200, 0);
COR

Stewart

OK... curiosity got the better of me.


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x:=Security("C:\MetaStock\Forex\AUDUSD", C);
y:=Security("C:\MetaStock\Australia\ASX 200\^AXJO", C);

n:=200;

num:=Sum(x*y,n)-n*Mov(x,n,S)*Mov(y,n,S);
den:=n*Stdev(x,n)*Stdev(y,n);

num/Max(den,Power(10,-8));
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wabbit [:D]