I didn’t
realize that you used TC2000x, Patrick.
Since I’ve
tried it a few times, but always went back to QPlus, could you spell out why
you picked it, given that you also have a RT feed?
Regards,
Bob
-----Original
Message-----
From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx]On Behalf
Of NW Trader
Sent: Friday, June 24, 2005 7:28
PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: New,
fixed TC2000/TCNet/TC2005 data plugin
Hi
dbirru,
I'm confused
by your procedure as it is certainly not what I do.
After
updating your TC2005 data, why do you "run scan over the whole
database"? If you use the F5 key or click View--> Refresh or
simply close and reopen AB, you will have updated the AB database. The TC
data plug in makes it unnecessary to retrieve anything from the TC data base,
except when you want to bring in new tickers that have been added since you set
up your AB TC data folder. One of the joys of AB is that it reads the
data directly from the TC database with it's plug in so there is no
"importing" data into AB with TC2005.
My setup and
procedure. Under the Database Settings (File --> Database settings),
the Data source is the TC2000/TCNet Plugin and Local data storage is set to
Enable. After updating in the TC program, I click F5 and the data is now
updated in AB -- takes about 3 seconds on one fast machine, about 6 seconds on
a second slower machine.
When you do
run scans or explorations, the first run will be slower as it loads data into
the cache, there after the same scan or exploration will run faster. To
learn a bit more about how AB handles external data (like TC) read the Help
Tutorial section on Database Management, Understanding AmiBroker database
concepts.
Peace and
Justice --- Patrick
-----
Original Message -----
To: amibroker@xxxxxxxxxxxxxxx
Sent: Friday, June 24, 2005
6:36 PM
Subject:
[amibroker] Re: New, fixed TC2000/TCNet/TC2005 data plugin
Thanks for this. The problem is fixed.
However, I am not able to see the difference b/n this and the old one.
I use EOD data. Is this update for realtime/intra-day date?
What I have been looking for is a way to reduce the time that takes to
convert the TC2005 data to the native database. Normally, I first
dawnload using TC2005. I then start AB and run scan over the whole
databse. I then close AB so that the data is saved in AB native
database. I then restart AB. Change the database to local. Then
continue my backtesting. This whole process takes about 15-20minutes.
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko"
<amibroker@xxxx>
wrote:
> Hello,
>
> A new, fixed TC2000/TCNet/TC2005 data plugin version 1.4.3 is
available now
> for download from:
> http://www.amibroker.com/bin/TC2K.dll
>
> Installation:
> Download and copy to Plugins subfolder. Please OVERWRITE old copy
> ( if you keep two copies then older one will be loaded ).
>
> Changes:
> + fixed crash occuring when "Number of Bars to Load" was set
to 4000
or higher (15 years)
> and given symbol had longer history in TC2000
(mainly indices)
>
> + workaround for TCDK problem of not returning entire history
available:
> if "number of bars" specified by the user is
5000 or higher than
TCDK is
> queried with size = 0, which in TCDK-speak means "all
quotes".
> To get all quotes set "Number of bars" to value
equal or higher
than 5000
> (note that some indices (Sp-500) have about 11000
bars)
> To get better performance specify LESS than 5000 bars (19
years
worth of data)
>
> + View->Refresh All menu causes re-initialization of TCDK and
getting updated quotes for today
> (even during trading session)
>
>
> How to get new quotes during trading session and after close:
> Now in order to get fresh quotes you need to choose View->Refresh
All
> menu from AMiBroker after running download in TC2000.
>
> In order to get fresh quotes the plugin needs to internally restart
TC2000 API (TCDK),
> it is done automatically by the plugin but takes about 5-15 seconds
(depending on machine speed)
>
> This is due to the design of TC2000 API that feeds all external
applications
> with old quotes until entire API (TCDK) is restarted, which is
unfortunatelly long process.
>
> By the way, people looking for EOD data source for extensive data
mining
> should take a look at Quotes Plus (QP2) which is several times
faster and less
> resource consuming than TC2000.
> (there is a link to QP2 on AmiBroker page)
>
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
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