[amibroker] Re: Mixed EOD/Intraday data limitations?

["ganamide" <ganamide@xxxxxxxxx>]

Tomasz,

I followed the video instructions exactly as you suggested and it seemed fine at first, but I now see the same exact problem as before - my daily data has become truncated to match exactly the amount of 1 minute data. I haven't pinned down the exact steps to reproduce, but it may have something to do with manually forcing backfill, or by manually saving the database, or by closing and opening AB several times.

Perhaps you will now answer my previous questions 2-4 below.

Thanks,
Chris


--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@xxx> wrote:
>
> Hello,
> 
> You need to setup your database precisely as shown in the video:
> http://www.amibroker.com/video/IQFeed.html
> 
> 10000 bars is too few in order to accomodate both EOD and intraday mixed,
> 10000 means that you get *only* intraday, you need 90000 to use mixed data,
> as shown in the video.
> 
> The best thing is to follow documentation/videos precisely.
> 
> Answers to 2/3/4 are the same: configure your database as shown in the video
> and won't need anything mentioned below.
> 
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message ----- 
> From: "ganamide" <ganamide@xxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, November 25, 2009 10:21 PM
> Subject: [amibroker] Re: Mixed EOD/Intraday data limitations?
> 
> 
> > Tomasz,
> >
> > I still have questions regarding how the mixed EOD/Intraday data actually works. I am using IQFeed and when allowing mixed data, I 
> > get mixed results. It seems like when I initially add a symbol to the database, I get full EOD data (i.e. several years), but when 
> > I force a backfill, the EOD data is truncated to the amount of intraday data that the database is specified to hold (i.e. 10,000 
> > 1-minute bars = 7 daily bars.)
> >
> > 1. How is the mixed EOD/intraday data feature implemented? Is it only storing data in the shortest interval (i.e., 1 minute)? Do I 
> > really need to load over 1,000,000 1 minute bars just so that I can see 4 years of daily futures data (24 hours session) when 
> > using the mixed data setting?
> >
> > 2. I am not sure if you answered this question that the original poster asked: If we use separate databases for EOD and intraday 
> > data, can we access both databases from a single backtest?
> >
> > 3. Related to question 2, can chart drawings be shared between two databases? I really like being able to draw a trendline on a 
> > daily chart and seeing it on a 5 minute chart. Can I do this when using separate databases?
> >
> > 4. Is it possible that you will add in the near future full support for combined EOD and intraday data, using separate stores for 
> > each in the same database?
> >
> > Dziekuje bardzo!
> > Chris



------------------------------------

**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.

TO GET TECHNICAL SUPPORT send an e-mail directly to 
SUPPORT {at} amibroker.com

TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)

For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/

Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/amibroker/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/amibroker/join
    (Yahoo! ID required)

<*> To change settings via email:
    amibroker-digest@xxxxxxxxxxxxxxx 
    amibroker-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    amibroker-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/