Hi Tomasz, Thanks for the clarifications. This may be a support question, and if so, I'll redirect. But there seems to be some interest in this overall right now in the forum.
I just connected AB RT to eSignal (1-min. base interval, 3,000 bars loaded at a time, mixed Intra/EOD). I'm only tracking a few symbols. I wanted to backfill as much as I could in order to do some backtesting. I had thought as you mention that the data is backfilled by virute of connecting. I also used the exploration you have in the KB, and added a setbarsrequired() call to as many bars as I believe 120 days worth of 1-min data would require and checked the wait for backfill checkbox. However, even after I bumped up the load number another 1,000 to 4,000 and ran the exploration to see what would happen, I'm only getting a few bars worth back. I'm also experiencing some issues backtesting in RT, I'm sure those are support questions, and I'll send them separately. Thanks! Regards, Gordon --- In [email protected], "Tomasz Janeczko" <[EMAIL PROTECTED]> wrote: > > > 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" <[EMAIL PROTECTED]> > To: <[email protected]> > 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: [email protected] [mailto:[EMAIL PROTECTED] On Behalf > > Of Lester Vanhoff > > Sent: Tuesday, December 26, 2006 23:28 > > To: [email protected] > > 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 [email protected], "Tomasz Janeczko" <groups@> 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@> > >> To: <[email protected]> > >> 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 [email protected], "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: <[email protected]> > >> >> 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 > > > > > > > > > > >
