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I looked at the Equity function a couple of weeks ago and couldn't
figure out a way to make it do what I wanted (maybe I'd have better
luck with my somewhat improved knowledge this week). For this
particular project I'm not looking for an automatic backtest system
with buy-sell rules, but a manual tool that I can plod along with,
testing my reactions to various custom indicators and the results
which ensue. The triple-click method which I described accomplishes
what I need at the moment, but out of curiosity and for future
projects I wondered why I was unable to code in a specific start or
end date if I wanted to go that route. Putting a value like 1010521
in the parentheses after DateNum yields only a syntax error. It may
be that my understanding of AFL is not sufficient to even pose a
valid question at this point. --Ned
--- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <amibroker@xxxx>
wrote:
> Hello,
>
> Instead of working on manual backtester, wouldn't be easier to just
use built-in Equity function
> http://www.amibroker.com/f?equity
>
> You can use range markers with equity too:
>
> buy= ...
> sell = your system here
>
> graph0 = Equity( 0, 3, BeginValue( DateNum() ), EndValue( DateNum
() ) );
>
> And you will be able to see your equity chart changing immediatelly
as
> you change range markers.
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Leon Nedbalek" <ned@xxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Wednesday, January 14, 2004 8:40 PM
> Subject: [amibroker] Setting Beginning Date of Test Period
>
>
> > I'm working on a manual backtester which allows me to progress
bar by bar
> > through the past performance of a stock, view the custom
indicator outputs
> > that would have been current at that time, make decisions on
entry and exit
> > points, test entry and exit signals, etc., all with the "current"
date at
> > the right margin with no "future" data yet visible. When the
desired entry
> > date is at the right margin, I set the test period by triple-
clicking on
> > that bar -- this sets the BeginValue(BarIndex()) to that date and
resets
> > the SelectedValue(BarIndex()) to whatever date is at the right
margin, with
> > the "days in trade" increasing by one each time I click the
scroll bar
> > arrow or the bracket key (keyboard set up to behave like TC2000).
Here is
> > an excerpt of the code which works in that manner:
> >
> > Start=BeginValue(BarIndex());
> > Current=SelectedValue(BarIndex());
> > DaysInTradeInclusive=Current-Start+1;
> > EntryPrice=BeginValue(Close);
> > etc etc
> >
> > This works fine for that purpose, but I would like to set up some
backtest
> > indicator files preset with a specific start date or changeable
with a
> > right-click "parameters" function rather than starting at the
earliest data
> > date. So far I have not been able to enter the desired date in a
location
> > or format which the program will accept.
> >
> > Help, please!
> >
> > Ned
> >
> >
> > Send BUG REPORTS to bugs@xxxx
> > Send SUGGESTIONS to suggest@xxxx
> > -----------------------------------------
> > Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
> > (Web page: http://groups.yahoo.com/group/amiquote/messages/)
> > --------------------------------------------
> > Check group FAQ at:
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> >
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
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> >
> > To unsubscribe from this group, send an email to:
> > amibroker-unsubscribe@xxxxxxxxxxxxxxx
> >
> > Your use of Yahoo! Groups is subject to:
> > http://docs.yahoo.com/info/terms/
> >
> >
> >
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Yahoo! Groups Links
To visit your group on the web, go to:
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