RE: [amibroker] Indicator Maintenance

Sun, 30 Jul 2006 08:37:51 -0700

TJ: can you clarify this one comment you made:  "The ones which are not referenced by any layout can be deleted from internal table."
 
I do not remember a choice labeled with "Delete from Internal Table" vs "Delete from Hard Drive".  I got the impression, that clicking next would delete all checked files from the hard drive.  Is there a way to delete from the table and still leave all AFL files on the drive, yet relieve the 3000 active indicator limitation?
 
Can you clarify please.
 
Thanks,
 
Ken

From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Tomasz Janeczko
Sent: Saturday, July 29, 2006 4:09 PM
To: [email protected]
Subject: Re: [amibroker] Indicator Maintenance

Hello,
 
THe limit is that you can have upto 3000 indicators actually used at the same time in layouts.
The number of AFL files is UNLIMITED.
 
Indicator maintenance checks for any indicators that were deleted from any layouts on your hard disk and frees table from entries
allocated for indicators that were deleted.  This procedure is rarely but still needed because if you delete indicator from one
layout there is no guarantee that there is no other layout file buried somewhere on your hard disk that still references given indicator.
So Indicator Maintenance scans all hard disks and all partitions looking for layout files and analysing them to built the
"actually used" table of indicators. The ones which are not referenced by any layout can be deleted from internal table.
Depending on your choice you may leave default behaviour (cleaning up only internal table) or deleting actual formula files
that are not referenced. This is up to you. If you don't use particular formula for say AA Scan/Backtest/Optimization you can 
delete it. If you use it or need it for some archive purposes - leave it unchecked.  
 
As for rules to use - the only rule is in AMiBroker - if you don't know what to do - accept defaults. The same with indicator maintenance.
Just press "Next" all the time and you will safely complete the procedure without changing any settings.

Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: Ken Close
Sent: Friday, July 28, 2006 11:58 PM
Subject: [amibroker] Indicator Maintenance

Can someone tell me where the limits on indicators is explained and how the Indicator Maintenance Wizard works. Actually, I ran it so I know what it does step by step, but am curious what the "rules" are about its use.  For example, I have a bunch of indicators in Formulas>Custom, with a variety of subfolders under Formulas, plus I have a large inventory housed in My Documents.  I do not necessarily want to delete any of these, and dont want to spend the time reviewing each one to see whether I want to keep it or not.  What is the program limit on these (I never thought there was a program limit), and why is there such a limit?
 
Any comments?
 
Thanks,
Ken
 
 
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