[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Metastockusers] Re: Tester question



PureBytes Links

Trading Reference Links

I have ver 8.01, and have verified the results from APS via MS Pro!
I think the upgrade would be worth your time.

Bob



--- In Metastockusers@xxxxxxxxxxxxxxx, "equtrader" <equtrader@xxxx> 
wrote:
> Roy,
> 
> Thanks for the hint. I'm thinking of upgrading to v8.01 but that is 
> not the issue with what I'm talking about here. I've been a long 
time 
> user of Metastock since the real-time DOS version,
> I think it was 4.0 or something. I've been using 7.0 pro in the 
past 
> for system development and testing. Late last year I purchased APS 
> from tradingpatterns.com. I was skeptical in the beginning about 
> getting another program but that specific one helped me to realize 
a 
> few things about testing systems. When comparing the back testing 
> results of APS and Metastock for the same systems they were 
different 
> and that made me very curious. I then went manually, trade-by-trade 
> over a number of system testing results and I realized that 
Metastock 
> testing was wrong. The problem is that if a system exited an open 
> position on the open or during the day and the same signal 
generated 
> a new position on the close of the same day or the open of next 
day, 
> that specific trade would not show up in the testing. As a result, 
> the performance of the system was misleading or even wrong, 
depending 
> on how many trades were skipped by the tester. But here comes 
another 
> problem: If one uses a time shift as suggested to fix the tester 
> problem then the same formula in the explorer misses the signal. 
> 
> I feel very uncomfortable that years of work with Metastock testing 
> systems involved such a "limitation". Even if this is solved in 
v8.01 
> that's of no cancellation for all the wrong testing results and the 
> missed trades. 
> 
> Joe
> 
> 
> 
> 
> 
> 
> 
> 
> --- In Metastockusers@xxxxxxxxxxxxxxx, "Roy Larsen" <rlarsen@xxxx> 
> wrote:
> > Hi Joe
> > 
> > I think the Equis "solution" is v8.01.
> > 
> > Roy
> > 
> > ----- Original Message ----- 
> > From: "equtrader" <equtrader@xxxx>
> > To: <Metastockusers@xxxxxxxxxxxxxxx>
> > Sent: Tuesday, May 20, 2003 8:50 PM
> > Subject: [Metastockusers] Re: Tester question
> > 
> > 
> > > Hi Roy,
> > >
> > > Thanks a lot. I checked that and it works fine. But here is the
> > > question: Now, using your shifting, the equity curve is correct 
> but
> > > the signals in explorer are received one day after they are
> > > generated. Because if 0 bar is today then the signal on the 
open 
> will
> > > be generated one day late. I just run the tester and an 
> exploration
> > > for a date I know the signal was generated. Your method gave the
> > > correct backtest but a signal was not generated for next open. 
In
> > > other words, you need a different formula for the tested and the
> > > explorer for the same system to produce compatible results. 
Beyond
> > > that, you may not even be getting the right signal timming if 
your
> > > are using the formula that's good for the tester only.
> > >
> > > We got a serious problem here, I mean Metastock's got one.
> > >
> > > Joe
> > >
> > >
> > >
> > > --- In Metastockusers@xxxxxxxxxxxxxxx, "Roy Larsen" 
<rlarsen@xxxx>
> > > wrote:
> > > > I have 7.03 EOD and this certainly seems to be the way it 
works.
> > > >
> > > > I think a work-around for this would be to change your entry 
> code to
> > > > Ref("entry code",-1) and at the same time change the System 
> Tester
> > > to zero
> > > > delay. the effect of the two changes is that the timing of 
your
> > > signal stays
> > > > the same but the System Tester doesn't not assume an overlap 
and
> > > inhibit the
> > > > trade entry as a result. I have not tested this recently but 
I'm
> > > aware that
> > > > the treatment of delays is one of the reasons my Trade Equity 
> can
> > > produce
> > > > different results.
> > > >
> > > > Roy
> > > >
> > > >
> > > > ----- Original Message ----- 
> > > > From: "equtrader" <equtrader@xxxx>
> > > > To: <DEFANGED_Metastockusers@xxxxxxxxxxxxxxx>
> > > > Sent: Tuesday, May 20, 2003 8:37 AM
> > > > Subject: [Metastockusers] Tester question
> > > >
> > > >
> > > > > I use 7.0 Pro.
> > > > >
> > > > > I have this simple formula in the tester. I noticed that 
when 
> an
> > > open
> > > > > position exits and a signal is generated on the same day 
close
> > > with
> > > > > an entry at the open of the next day, the tester does not 
take
> > > that
> > > > > position. Is this the way the Metastock tester works?
> > > > >
> > > > > Thank you
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > To unsubscribe from this group, send an email to:
> > > > > Metastockusers-unsubscribe@xxxxxxxxxxx
> > > > >
> > > > >
> > > > >
> > > > > Your use of Yahoo! Groups is subject to
> > > http://docs.yahoo.com/info/terms/
> > > > >
> > > > >
> > > > >
> > > > >
> > >
> > >
> > >
> > > To unsubscribe from this group, send an email to:
> > > Metastockusers-unsubscribe@xxxxxxxxxxx
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to 
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
> > >


------------------------ Yahoo! Groups Sponsor ---------------------~-->
Get A Free Psychic Reading! Your Online Answer To Life's Important Questions.
http://us.click.yahoo.com/Lj3uPC/Me7FAA/CNxFAA/zMEolB/TM
---------------------------------------------------------------------~->

To unsubscribe from this group, send an email to:
Metastockusers-unsubscribe@xxxxxxxxxxx

 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/