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Tomasz
Two questions:
1. Can we create a time-series of user defined fundamental fields? if not, please explain why not?
2. What is the cost of two additional auxilliary data fields in terms of overhead and computing power? I can see using one for dividend and the other for split information. I could use a couple more. One for tagging symbols for material events (such as merger & bankrupcy).
TIA
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> Hello,
>
> AmiBroker 5.27.0 ALPHA released
>
> http://www.amibroker.com/devlog/2009/08/03/amibroker-5-27-0-alpha-released/
>
> ALPHA means that this version is experimental and you *must* do backup of your data files before installing it. New version changes
> the format of database files (quotation / stock / drawings ),
> so once data are saved with version 5.27 you will NOT be able to read them in pre-5.27 version.
> The ALPHA installer comes with simple backup program that will create a copy of your AmiBroker directory - it will display right
> after new program files are copied. The backup will be created in C:\AmiBrokerBackup folder. Please note that this backup is
> intended to copy the database files, not program files which will be overwritten anyway. If you want to backup program files too,
> you need to backup them manually prior to installation. If you made your own backup prior to installation, you can skip (Cancel) the
> backup part of the install routine.
>
> CHANGES IN VERSION 5.27.0 (as compared to 5.26.0):
>
> - changed core data structures to support the following
> -- 64 bit date/time field with date range of 4095 years and resolution down to microseconds
> -- floating point volume and open interest fields
> -- two new auxilliary data fields per bar (internally, not yet exposed)
> -- 100 new user-defined fundamental data fields (internally, not yet exposed)
> -- support for GICS (internally, not yet exposed)
> -- upto 48 character length in Symbol/Alias/WebID fields
> - Updated plugins for eSignal, IQFeed, Interactive Brokers, Quotes Plus, Metastock to support floating point volume/open int and 64
> bit date/time
> - 1-second interval bars
> - Metastock plugin now reads long symbol description
> - Symbol lock fixed (does not interfere with Interval linking)
> - Added simple "BackupAB.exe" to backup entire AmiBroker folder after installation to prevent data in old format.
>
> Details in the read me:
> http://www.amibroker.com/devlog/wp-content/uploads/2009/08/readme5270.html
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
>
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