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 [email protected], "Tomasz Janeczko" <[EMAIL PROTECTED]> 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" <[EMAIL PROTECTED]> > To: <[email protected]> > 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 [email protected], "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 > > > > > > >
