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John.
You've just stumbled over one of the restrictions of the Formula
language. The time period reference in Ref(,) must be a constant.
One workaround would be along these lines:
p1:=If(Ref(Inside(), -1),-1,-2);
H<If(p1=-1,Ref(H,-1),If(p1=-2,Ref(H,-2),0));
Are you sure you want to use "<" instead of ">"?
Best regards,
Yngvi
-----Original Message-----
From: John Rowlinson [mailto:john@xxxxxxxxxxxxxxx]
Sent: Friday, March 07, 2003 11:12
To: equismetastock@xxxxxxxxxxxxxxx
Subject: [EquisMetaStock Group] Question...
Hello,
I am trying to create a swing trading system. If I have an inside day
then I want to ignore it - ie step back another day. So I started by
assigning a vartiable, p1 as follows:
p1:=If(Ref(Inside(), -1),-1,-2);
Then I want check for, amongst other things, a higher high. So I do:
H<Ref(H,p1)
But this doesn't work. It says 'This variable or expression must
contain only constant data.'
And this gives the same error:
H<Ref(H,If(Ref(Inside(), -1),-1,-2))
Is it because I can't have nested Ref's? Anyone any idea how I could
overcome this?
Thanks
John Rowlinson
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