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FWIW: I used "advanced search" on YahooGroup
http://finance.groups.yahoo.com/group/amibroker/msearch_adv
entered "number of bars" (with quotation marks) in the "message body" and
my name in the "author" field and all results are relevant to the question.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Barry Scarborough" <razzbarry@xxxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, February 12, 2008 3:33 PM
Subject: [amibroker] Re: Is database limited by the number of bars in database setting?
> Thanks for the reply. Sadly, it isn't always easy to find something
> in the forum posts using a search. I tried many search arguments and
> never ran across the post you referenced, or any other post that
> answered the question.
>
> Barry
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx>
> wrote:
>>
>> Hello,
>>
>> Actually posts on the same subject were replied many times in the
> past.
>>
>>
>> Last time similar thread was in September 2007
>> http://finance.groups.yahoo.com/group/amibroker/message/115085
>>
>> Short answer: yes "number of bars" setting in the Database Settings
>> specify maximum number of bars that are fed through the plugin to
> the AB database.
>>
>> While AB does not have any hard coded limit, and you can have any
> length of
>> data in off-line databases, it uses this setting to avoid
>> growing real-time databases beyond certain point to make sure the
> performance is good.
>>
>> So:
>> 1. you can import unlimited number of bars into off-line databases
> (only computer's memory is the limit)
>> 2. on-line real-time databases use the user-definable limit in the
> Database Settings, it works FIFO-way.
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "Barry Scarborough" <razzbarry@xxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, February 12, 2008 5:26 AM
>> Subject: [amibroker] Re: Is database limited by the number of bars
> in database setting?
>>
>>
>> > Yea good luck! It must be a secret. I have the same problem and
> asked
>> > why about 5 times and no one ever answered why. I hope you get an
>> > answer because I would really like to know why too. I keep
> importing
>> > data from back up files and it keeps going poof. I have a 320 gig
> HD so
>> > space isn't a problem. Keeping the data around is a problem. I
> had
>> > imported data for qqqq back to 2/14/07 in January and I just
> looked at
>> > it and it now starts in June. I'll be interested in the reply you
> get.
>> > Cheers,
>> > Barry
>> >
>> > --- In amibroker@xxxxxxxxxxxxxxx, "wonet2001" <wonet2001@> wrote:
>> >>
>> >> it's a intraday 1 minute database with IB datafeed, the number
> of
>> > bars
>> >> in database setting is 30,000, I noticed that the database is
> limited
>> >> to 30000 bars no matter how long I have accumulated data, my
> purpose
>> > is
>> >> to accumulate more than six months data for backtesting, but
> seems I
>> >> keep loosing old data as time goes by.
>> >>
>> >> what is the solution? should I make the number of bars bigger,
> say
>> >> 500,000? will it affect the performance of AB for my intraday
> trading?
>> >>
>> >> thanks
>> >>
>> >
>> >
>> >
>> >
>> > 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
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