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Thanks Dingo,
You have answered one important question for me which is helpful. I
will send my results and other questions to TJ.
Thanks again,
Ed
--- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> Thanks Ed but I don't think Andrew got much out of our exchange -
just a
> feeling..
>
> The first thing you need to know when viewing the AB backtest
reports is
> that every trade is taken without consideration of the capital
> available. There is no portfolio management in the backtest so you
can't
> rely on the backtest results being reliable in terms of portfolio
> consideratons. Individual Tickers? Yes.
>
> There are some new user supplied tools emerging to help deal with
this
> and TJ has promised us some exciting (my word not his) enhancements
in
> this area. (He's been very quiet lately in terms of beta releases
and
> the suspense is building... Usually when he's quiet like this
something
> big is about to happen... ) Fred Tonetti has just shared
the "Mother of
> all backtesters", PT101, and its available in the files section of
this
> group. Don't try to understand the logic in it 'cause Fred is from
New
> Jersey!
>
> As to your specific questions: I haven't tried to reconcile the
numbers
> as you have and don't have answers for you - I suggest you forward a
> copy of your email to support@xxxx to see if TJ can help you.
>
> Re your last paragraph: as I mentioned above every trade is taken
> regardless and increasing the equity will not help.
>
> d
>
> -----Original Message-----
> From: Edward M. Wylonis [mailto:ewylonis@x...]
> Sent: Saturday, June 07, 2003 10:50 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: lets try trading
>
>
> Dingo,
>
> I appreciate your helping Andrew to understand backtesting as it
> could also help me. I have been trying to understand how it works
> but have been stymied by "apparent" inconsistencies. There may be
an
> explanation for them but I have searched the User Guide and the
> archives but have not found explanations. One inconsistency(to me)
> shows up on Andrew's results. For instance:
>
> The "Total net profit: 14240.39 does not equal the Profit of
winners:
> 13197.19 minus the Loss of losers: 0.00. Do theses numbers include
> commissions?
>
> In my backtest the Profit of Winners less the Loss of losers does
add
> up to the Total net profit, however, the number of trades does not
> match the results. The dollars of profit include all of the trades
> in the results but the number of trades counted is less than a
manual
> count. For instance there will be 32 winning trades and 35 losing
> trades but only 8 winning trades and 18 losing trades will be
totaled
> in the results and only 8 and 18 tickers will have a 1 for a trade
in
> the results listing. Am I missing something?
>
> Does the backtester take the equity and use it on the first trade
> candidate and pass on another trade candidate when it appears if
all
> of the equity/margin is involved in the first trade? When the first
> trade is sold does it then become available for another trade?
Does
> that explain why the number of trades in the results is less than
the
> stocks that met the buy/sell criteria? Will increasing the equity
> include some of those trades?
>
> Thanks,
>
> Ed
>
>
>
>
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxxx> wrote:
> > The first thing you've got to do is learn how to read the results
in
> > your report. How skilled are you at that? I don't want to talk
> beneath
> > your level of experience so how about a little background on your
> > trading experience and experience with Amibroker?
> >
> > d
> >
> > -----Original Message-----
> > From: Andrew [mailto:andok@x...]
> > Sent: Friday, June 06, 2003 10:41 PM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] lets try trading
> >
> >
> > I have no idea backtest look good .
> >
> >
> >
> >
> > Best regards,
> > Andrew mailto:wocek@x...
> >
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