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Well thought out, as always :-)
--
Terry
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf
Of Tomasz Janeczko
Sent: Wednesday, December 27, 2006 14:21
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: Which Folders Are Shared By Default Between
Multiple AB Installations
Hello,
The point is to have long EOD histories AND intraday data.
Of course AmiBroker will compress intraday to daily, but to have 9 years of
daily charts you
would need to have nearly one million of bars. With mixed mode you have 120
days intraday
and 9 years of eod in the same database with 10 times less bars.
It is about convenience, hard disk space and speed of processing.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Terry" <MagicTH@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Wednesday, December 27, 2006 6:23 PM
Subject: RE: [amibroker] Re: Which Folders Are Shared By Default Between
Multiple AB Installations
> Tomasz,
>
> Thanks. However, I was referring to a daily database where there is no
> intraday data at all. If you had a minute database, then what is the
purpose
> of using Mixed EOD/intraday? You can simply click on daily timeframe,
right?
> I must be missing something here.
> --
> Terry
>
> -----Original Message-----
> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf
> Of Tomasz Janeczko
> Sent: Wednesday, December 27, 2006 09:57
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: Re: [amibroker] Re: Which Folders Are Shared By Default Between
> Multiple AB Installations
>
>> Intraday data is NOT saved in Mixed EOD database.
> Incorrect.
>
> As far as mixed EOD/intraday mode is considered, intraday data ARE saved
> together
> with EOD data.
> This mode allows 1-minute (and any higher interval) charts (120+ days)
plus
> long (9 years) EOD histories
> from the same database using just 90000 bars.
> Mixed EOD/intraday is available with eSignal as data source
> and "Mixed EOD/Intraday" option selected in File->Database
> Settings->Intraday Settings.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Terry" <MagicTH@xxxxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, December 27, 2006 5:03 PM
> Subject: RE: [amibroker] Re: Which Folders Are Shared By Default Between
> Multiple AB Installations
>
>
>> Intraday data is NOT saved in Mixed EOD database. It simply allows
> updating
>> of the current day's value by every new piece of data received...and it
> only
>> works with certain data suppliers.
>>
>> If you want both you can have a minute database (or whatever timeframe)
> and
>> simply view in a Daily time frame. Of course, this requires orders of
>> magnitude more data than a daily database and long history is not
> available.
>> --
>> Terry
>>
>> -----Original Message-----
>> From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
> Behalf
>> Of Lester Vanhoff
>> Sent: Tuesday, December 26, 2006 23:28
>> To: amibroker@xxxxxxxxxxxxxxx
>> Subject: [amibroker] Re: Which Folders Are Shared By Default Between
>> Multiple AB Installations
>>
>> Thanks for clarification, TJ. I still would like to have a script that
>> removes old intraday data from mixed eod/intraday data files. Backfilling
>> intraday data for hundreds of tickers can bog down the download. I'll
> create
>> a separate thread for that. Maybe someone has such a such a script.
>>
>> Lester
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>>>
>>> >
>>> > 1) There were some reports on this forum from users about formulas
that
>> got "confused" using mixed data.
>>>
>>> No, no formula can be confused if only "mixed EOD/intraday" is ON
because
>> AMiBroker takes all overhead
>>> of extracing EOD data when periodicity or viewing interval is set to
> daily
>> and extracting intraday only if intraday
>>> viewing interval is picked. From the formula point of view it looks like
>> you were running separate dbs.
>>>
>>> >
>>> > 2) How to extract only-eod and only-intraday data for export to ASCii
>> files, in case you want to use that data with other charting
>>> > programs.
>>>
>>> AA Export
>>>
>>
>
http://www.amibroker.com/kb/2006/03/04/how-to-export-quotations-from-amibrok
>> er-to-csv-file/
>>>
>>> >
>>> > 3) Maintaining clean data in mixed mode sounds like a nightmare. What
>> about a situation when you watch some ticker in RT for a
>>> > week and then forget about it. You end-up with the file which is
mostly
>> eod and has a few days of RT a few months back. A script
>>> > to clean this out would be needed.
>>>
>>> Not really. If you are using eSignal (which has mixed eod/intraday
>> supported) it is all backfilled automatically and you can go for
>>> vacation for 120 days
>>> and it will still continue to have everything automatically backfilled.
> In
>> worst case you just do "force backfill" and you end up
>>> with correct data.
>>>
>>>
>>> Best regards,
>>> Tomasz Janeczko
>>> amibroker.com
>>> ----- Original Message -----
>>> From: "Lester Vanhoff" <ebsn247lsm@xxx>
>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>> Sent: Tuesday, December 26, 2006 11:24 PM
>>> Subject: [amibroker] Re: Which Folders Are Shared By Default Between
>> Multiple AB Installations
>>>
>>>
>>> >> TJ: when having two installations in DIFFERENT folders there are NO
>> folders shared by default ...
>>> >
>>> > Well, I have v4.80.1 (eod) and v4.89.0 (1 minute) installed on the
same
>> computer in different folders:
>>> >
>>> > - E:\AmiBroker
>>> > - E:\AmiBrokerR
>>> >
>>> > Eod database is: D:\AmiBroker\Data2
>>> > RT database is: D:\AmiBroker\Data4
>>> >
>>> > When I first tried to access AA on the new installation it just
>> defaulted to formulas folder from the old installation. After
>>> > fixing that and then trying to access AA from the old installation, it
>> opened formula folder from the new installation. This must
>>> > have something to do with the registry. Personally, I find it better
to
>> use a single folder for both installations and have no
>>> > complaints.
>>> >
>>> >> TJ: You don't need two installations. From Single installation you
can
>> run multiple times and load different databases.
>>> >
>>> > Switching between databases when you trade in real time is
> inconvenient.
>> "Mixed eod/intraday" data sounds like a solution but
>>> > there are a few issues:
>>> >
>>> > 1) There were some reports on this forum from users about formulas
that
>> got "confused" using mixed data.
>>> >
>>> > 2) How to extract only-eod and only-intraday data for export to ASCii
>> files, in case you want to use that data with other charting
>>> > programs.
>>> >
>>> > 3) Maintaining clean data in mixed mode sounds like a nightmare. What
>> about a situation when you watch some ticker in RT for a
>>> > week and then forget about it. You end-up with the file which is
mostly
>> eod and has a few days of RT a few months back. A script
>>> > to clean this out would be needed.
>>> >
>>> > ------------
>>> >
>>> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@> wrote:
>>> >>
>>> >> You don't need two installations. From Single installation you can
run
>> multiple times and load
>>> >> different databases (File->Open database).
>>> >>
>>> >> And NO, when having two installations in DIFFERENT folders there are
> NO
>> folders shared by default, except
>>> >> if you set your own custom shared folders for formulas (via Prefs).
>> What is shared is REGISTRY - there is
>>> >> ONE registry entry PER WINDOWS USER. If you want separate entries you
>> need to login as two different Windows Users.
>>> >>
>>> >> All in all, single installation and multiple databases is easier and
>> better setup.
>>> >>
>>> >> Best regards,
>>> >> Tomasz Janeczko
>>> >> amibroker.com
>>> >> ----- Original Message -----
>>> >> From: "Lester Vanhoff" <ebsn247lsm@>
>>> >> To: <amibroker@xxxxxxxxxxxxxxx>
>>> >> Sent: Tuesday, December 26, 2006 11:54 AM
>>> >> Subject: [amibroker] Which Folders Are Shared By Default Between
>> Multiple AB Installations
>>> >>
>>> >>
>>> >> >I have two AB installations on the same computer (one for Eod and
one
>> for intraday). I have noticed that when I use the second
>>> >> >installation some folders in AA simply default to first
> installation's
>> path.
>>> >> >
>>> >> > This is not a bad thing as it allows keeping all formulas in one
>> place, but I'm not sure if it's by design or by coincidence
>>> >> > and
>>> >> > which folders are affected. Right after installing the second
>> instance of AB I copied all files from Formulas and Formats
>>> >> > folders
>>> >> > from the first to the second instalation so now it's difficult to
>> figure out what's shared by default and what's not.
>>> >> >
>>> >> > Tnx
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> >> > Please note that this group is for discussion between users only.
>>> >> >
>>> >> > To get support from AmiBroker please send an e-mail directly to
>>> >> > SUPPORT {at} amibroker.com
>>> >> >
>>> >> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>> >> > http://www.amibroker.com/devlog/
>>> >> >
>>> >> > For other support material please check also:
>>> >> > http://www.amibroker.com/support.html
>>> >> >
>>> >> > Yahoo! Groups Links
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> >> >
>>> >>
>>> >
>>> >
>>> >
>>> >
>>> > Please note that this group is for discussion between users only.
>>> >
>>> > To get support from AmiBroker please send an e-mail directly to
>>> > SUPPORT {at} amibroker.com
>>> >
>>> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>> > http://www.amibroker.com/devlog/
>>> >
>>> > For other support material please check also:
>>> > http://www.amibroker.com/support.html
>>> >
>>> > Yahoo! Groups Links
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>
>>
>>
>>
>> Please note that this group is for discussion between users only.
>>
>> To get support from AmiBroker please send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> http://www.amibroker.com/devlog/
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>> Please note that this group is for discussion between users only.
>>
>> To get support from AmiBroker please send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> http://www.amibroker.com/devlog/
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> Yahoo! Groups Links
>
>
>
>
>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
>
> Yahoo! Groups Links
>
>
>
>
>
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
Yahoo! Groups Links
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