Re: [amibroker] Database settings, Base time interval and IB pluging. VERY CONFUSING !!!

["Tomasz Janeczko" <amibroker@xxxxxx>]

Hello,

This is caused by the TWS that delivers backfill data in 60-second interval or less.
TWS does not support backfills with intervals > 1 minute.

See: 
http://www.interactivebrokers.com/en/software/apiReleaseNotes/apiBetanotes.php

However, STREAMING data collected by the plugin are compressed according
to the setting and intervals higher than 1 minute are supported and if you collect real-time streaming data
over some time you will see that settings are preserved.

Anyway since backfill is 1-minute or less I suggest to set up your database using
1-minute interval and use View->Intraday menu to switch between all other interval
ON-THE-FLY. This is highly recommended, faster and most flexible setup.

Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message ----- 
From: "tintin92" <tintin922002@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, June 03, 2005 12:36 PM
Subject: [amibroker] Database settings, Base time interval and IB pluging. VERY CONFUSING !!!


> Hello,
> 
> Something I found realy CONFUSING !!!
> 
> If you choose to create a new database with the following params :
> 
> Database setting
> Data source : InteractiveBrokers Pluging
> Base time : End-of-day
> or
> Base time : Hourly
> or
> Base time : 15 mn
> or
> Base time : 5 mn
> or
> Base time : 1 mn
> 
> Actually all the datas are stored in 1 mn format
> 
> If you choose to create a new database with the following params :
> 
> Database setting
> Data source : InteractiveBrokers Pluging
> Base time : 15 seconde
> 
> Datas are stored in 15 second format
> 
> Database setting
> Data source : InteractiveBrokers Pluging
> Base time : 5 seconde
> 
> Datas are stored in 5 second format
> 
> I'd prefer choice bettween  the reals data formats.
> 
> I found the help file really confusing
> http://www.amibroker.com/guide/h_ib.html
> 
>>From the help file :
> 
> Now choose Base time interval. Supported intervals are: EOD, hourly,
> 15-minute, 5-minute, 1-minute.
> Professional Edition of AmiBroker allows also to select Tick, 5-second,
> 15-second intervals.
> 
> 
> Please make the things more clear.
> I have spend much time to understand.
> 
> Please during Database setting..
> Allowe only REALS Base time interval formats.
> 
> It will be less confusing.
> 
> Tintin92
> 
> 
> 
> 
> 
> 
> 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 other support material please check also:
> http://www.amibroker.com/support.html
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
>


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