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In some cases I get an error, because there is not enough data to calculate on. Fore example in this simple formula.
Mov(C,720,S)*0.67
Is it possible to have a kind of error handling so I do not get an error?
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You can use Cum(1) to calculate the bar number or the number of bars since the fiirst bar.
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Rank: Advanced Member
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Hi Torbenv
If you use the Mov function in the Forum DLL then you can adjust the Periods value to the minimum of bars loaded, using Cum(1), or the number of periods stipulated.
ExtFml("Forum.Mov",C,Min(720,Cum(1)),S) * 0.67;
This method might still need to be modified if the data array being smoothed has some leading N/A bars. Price data arrays shouldn't be affected, but other data arrays might be.
Roy
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Rank: Member
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Thanks a lot for your quick reply. I will try this.
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Rank: Member
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Thanks. I have Metastock 12 EOD. Is it possible to install forum.dll on that version and where would I find the latest forum.dll.
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Rank: Advanced Member
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Hi Torbenv
I don't have a usable installation of MS 12 but I believe the Forum DLL should be installed in ...
C:\Documents
& Settings\"User name"\Local Settings\Application Data homson
Reuters\MetaStock\Formulas\External Function DLLs\
... which is quite different from ealier versions.
Go to the Files section of this website to find the "Forum" DLLs, of which there are two. The latest version is 188KB in size, somewhat bigger than earlier versions. You can use the original name if you want to, or you can change the name from the original to "Forum.DLL" or anthing else that takes your fancy.
Roy
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