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Graham,
What Ken said is true FOR PLUGIN-DRIVEN databases.
I think you were thinking about local database with NO plugin.
Things are different when you do NOT use plugin.
(then File->Database Settings "Number of bars to load" setting does not apply)
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Ken Close" <closeks@xxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, May 16, 2003 2:36 PM
Subject: RE: [amibroker] Re: Esignal & EOD Data
> 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
> >
> >
> >
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