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Graham:
It is an internal AB database. It is just the way TJ programmed the
data handling/saving. Keeps the size of each ticker at the max
datapoints you select. FIFO.
Ken
-----Original Message-----
From: Graham [mailto:gkavanagh@xxxxxxxxxxxxx]
Sent: Friday, May 16, 2003 7:47 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: RE: [amibroker] Re: Esignal & EOD Data
I don't use Esignal, but can you save the data to AB internal database?
This
could then be any size you want more than 60 days.
Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia
-----Original Message-----
From: Ken Close [mailto:closeks@xxxxxxxx]
Sent: Friday, 16 May 2003 7:41 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: RE: [amibroker] Re: Esignal & EOD Data
However, a watchout with this advice is that if you wish to "build-up"
your data so you eventually can backtest more than 60 days worth of
data, you need to set the number to a very high value. TJ will come
back and reply that this will degrade performance somewhat, but I have
never really noticed any degradation on my system. Nonetheless, the
program is set up with a first-in, first-out model and after you exceed
the number of data points to save, the oldest data starts to get deleted
automatically by the program. There is approx 102,000 datapoints in one
year of 1 min data.
Ken
PS: if the new program versions are different in this regard (they do
not delete data on FIFO basis, then I would like to know about it.
PSS: I have been collecting data since last May (2002) on approx 1500
symbols. I have missed a number of dates but right now the entire
eSignal directory is holding 775Mbytes. Large HDs are a requirement.
-----Original Message-----
From: Tomasz Janeczko [mailto:amibroker@xxxxxx]
Sent: Friday, May 16, 2003 4:44 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: Esignal & EOD Data
Hello,
500'000 is far too much for 60 days.
60 days for stocks represents about 30'000 bars.
So it is enough to enter say 40'000 with enough
'safety margin'.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "jehmac" <jehmac@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, May 16, 2003 7:59 AM
Subject: [amibroker] Re: Esignal & EOD Data
> You should be getting about 60 days of intraday data backfill with
> esignal. (1 min)
>
> Make sure you database setting has a high 'number of bars to load'
> setting so that you get all the data. (max 500000)
>
> --- In amibroker@xxxxxxxxxxxxxxx, "dajester147" <dajester_147@xxxx>
> wrote:
> > Hello everyone,
> >
> > Just subscribed to Esignal today, so I am having problems (as
> usual!)
> > with the database. I noticed that the default is set to 1min for
> > Amibroker using esignal RT data feed. However, when I switch over
> to
> > daily view, I only seem to get the last 5 day worth of daily data.
> > Since I primarily trade on daily data, but use intraday for
> > entry/exit, can I get more historical data in the database, but
> also
> > keep a couple of days worth of intraday info ?
> >
> > Thanks,
> >
> > Dan
>
>
>
> Send BUG REPORTS to bugs@xxxxxxxxxxxxx
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