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I see absolutely no reason to only hold 260 bars in a database. In
bcktesting you specify the period of the test so it makes no
difference if you ahve 1 year or 100 years, you only test over what
you want. There could even be a problem only having a short database
history as some methods are compiled over the histlry and a short one
could provide very different results.
Also if you use for example EMA(H,50) in your conditions then you have
immediately lost 20% of your history as it requires 50 bars to start
results
--
Cheers
Graham
AB-Write >< Professional AFL Writing Service
Yes, I write AFL code to your requirements
http://e-wire.net.au/~eb_kavan/ab_write.htm
On 4/7/06, mrdavis9 <mrdavis9@xxxxxxxxxx> wrote:
> Thanks Graham. I set the bars to 260 which Amibroker says is about a
> year's worth of data.
>
> If this really does make Amibroker totally ignore all the rest of the data,
> then why does one of our local computer guru Amibroker users keep a separate
> short database for trading purposes, and he uses a longer database for
> backtesting.
>
> Is it possibly because he finds it easier to not have to keep changing the
> BARS TO LOAD setting. Ron D
>
> ===================================================
> ----- Original Message -----
> From: "Graham" <kavemanperth@xxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Thursday, April 06, 2006 12:52 AM
> Subject: Re: [amibroker] USstocks DATABASE
>
>
> > You could just make the Database settings, Bars to load to be 126 or
> > similar for 6 months of data.
> >
> > --
> > Cheers
> > Graham
> > AB-Write >< Professional AFL Writing Service
> > Yes, I write AFL code to your requirements
> > http://e-wire.net.au/~eb_kavan/ab_write.htm
> >
> >
> >
> > On 4/6/06, mrdavis9 <mrdavis9@xxxxxxxxxx> wrote:
> >>
> >> I am using the FREE EOD data from Yahoo.
> >> My Yahoo US_stocks database goes all the way back to 10/01/1928.
> >>
> >> I copied all of this US_stocks database into a new folder which I
> >> have
> >> named US_stocks_6Months.
> >>
> >> I will start running my actual Trading Explorations from this 6Month
> >> database as soon as I can learn how to eliminate all of the DATA that is
> >> older than 6 months. Right now, it still has all of the data back to
> >> 1928.
> >>
> >> Ideally, I would like to have something that automatically eliminates the
> >> one day of data that becomes older than 6 months right after I finish a
> >> new
> >> daily YahooCurrent download from Yahoo.
> >>
> >> Hopefully, someone will be able to show me how I can accomplish this.
> >> Ron D
> >>
> >> 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
> >>
> >>
> >>
> >>
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> >
> >
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> >
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> >
> > For other support material please check also:
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> >
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> >
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>
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
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>
> For other support material please check also:
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