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Thanks Thomasz,
Unfortunately I am using local database. Is there a way to load only
a few days of data from local database? It is a waste of computing
power to load all the data if I only need the last day data.
Gary
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> This depends on what data source are you using. If you are using
> EXTERNAL source then File->Database Settings "number of bars to
load"
> decides how many bars are loaded.
> If you are using local database then all bars in database are used
in backtesting.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "gary_tiger2001" <gary_tiger2001@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, January 05, 2004 7:01 AM
> Subject: [amibroker] how many days of data is loaded in backtesting
>
>
> > Forgive me to ask this basic question. I have read through
manual
> > and couldn't figure out the answer.
> >
> > Let us say we have 10 years data (2500). In a backtest code line
> > like,
> >
> > value = close * 2;
> >
> > how many days of data is loaded? 10 years (2500)or less? Can it
be
> > set in configuration settings? The reason I ask is if I want to
do a
> > exploration for the last quote only, it doesn't make sense to
load
> > and calculate based the whole 10 years data, as our interest is
only
> > the last quote. Only if AB can only load the last day of data,
the
> > calculation will be much more efficient and fast.
> >
> > Secondly, when we use addtocomposite() function, can we append
the
> > new data to the existing symbol generated by previous runs of
> > addtocomposite(). The same logic applis here. I don't want to
run
> > calculation for the whole database every day.
> >
> > Thanks a lot in advance,
> > Gary
> >
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
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