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Re: Evaluating MS Trading Systems



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I am running the EOD version.  In Explorer...Options I have no option to
change the date.  I can only choose  "Load x records" or "Load Minimum
records".  No option to pick any specific dates. Does the Pro version have
the capability to change the exploration dates?

Tom
----- Original Message -----
From: "Dave Nadeau" <dave_nadeau@xxxxxxxxx>
To: <metastock@xxxxxxxxxxxxx>
Sent: Monday, June 25, 2001 4:55 PM
Subject: Re: Evaluating MS Trading Systems


> Lionel,
>
> Yes, it does allow this.  And you could use the feature to track the
performance of your top
> selections into the next two date ranges.  Good call!
>
> Tom,
>
> In the Explorer, when editing a specific exploration, you can click
Options.... and select a
> specific date for the exploration.  That's how I'd split the exploration
across three date ranges.
>
> And, yes, six columns is fairly limiting, especially when you are running
and rerunning multiple
> explorations across large portfolios....ugh!
>
> Dave Nadeau
>
> --- Lionel Issen <lissen@xxxxxxxxxxxxxx> wrote:
> > Doesn't V 7.x of Metastock allow you to take the results of one
exploration
> > and use it as the input for another?
> > Lionel Issen
> > lissen@xxxxxxxxxxxxxx
> > ----- Original Message -----
> > From: "Tom Sprunger" <tlsprunger@xxxxxxxx>
> > To: <metastock@xxxxxxxxxxxxx>
> > Sent: Monday, June 25, 2001 12:35 PM
> > Subject: Re: Evaluating MS Trading Systems
> >
> >
> > > Dave, you can't test different time periods in the Explorer unless
they
> > all
> > > end in the last (most current) date, can you?
> > >
> > > By the way, being limited to 6 columns in the Explorer sure is a pain
for
> > > system testing!  Sure limits you to what you can report.
> > >
> > > Tom
> > > ----- Original Message -----
> > > From: "Dave Nadeau" <dave_nadeau@xxxxxxxxx>
> > > To: <metastock@xxxxxxxxxxxxx>
> > > Sent: Monday, June 25, 2001 12:00 PM
> > > Subject: Re: Evaluating MS Trading Systems
> > >
> > >
> > > > Herman,
> > > >
> > > > I don't use the MSBT, but do the same sort of thing using the
Explorer.
> > I
> > > will code many of the
> > > > metrics that you are discussing and compare them across multiple
> > > securities in a portfolio.  You
> > > > have some very good ideas and I would like to experiment with some
of
> > them
> > > in my future tests.
> > > >
> > > > Another idea that may be worth trying is this:  split your data into
> > three
> > > date ranges (assuming
> > > > sufficient number of data points for a statistically valid result).
My
> > > theory is that when I
> > > > create a system that is successful, it exploits a market behavior
that
> > is
> > > consistent and
> > > > persistent.  An example is a trend following system.  Some markets
trend
> > > better than others,
> > > > especially certain commodities.    PREMISE:  Generally speaking,
i.e.
> > > across a group of these,
> > > > that market which trends will be more likely to trend in the future
than
> > a
> > > market which is choppy.
> > > >
> > > > So taking the best performing issues in the first date range, should
be
> > > the better performing set
> > > > in the next data range, and then, the third.  There will be
variation
> > > among some of the issues, of
> > > > course, but in general, I'm looking for this to be true.  If so,
then I
> > > get a good feeling for the
> > > > robustness of my system as well as the expectation of its
performance in
> > > the future.  When I find
> > > > systems that do not do this, my sense is that they are not much
better
> > > than random, and are more
> > > > of a curve fit rather than one I'd trust trading real dollars.
> > > >
> > > > This approach tends to be more of a securities fit, rather than a
curve
> > > fit.  It's just another
> > > > way to slice and evaluate a system.
> > > >
> > > > Dave Nadeau
> > > > Fort Collins, CO
> > > >
> > > > --- Herman van den Bergen <psytek@xxxxxxxx> wrote:
> > > > > At 08:00 PM 6/24/01 -0500, you wrote:
> > > > > >What is MSBT?
> > > > > >Lionel Issen
> > > > >
> > > > > MSBT (Multiple Security Back Testing) is an add-in for Metastock.
I
> > use
> > > it
> > > > > to test my trading systems on various stock selections (50 - 8000
> > > stocks).
> > > > > It takes about ten minutes to process 8000 stocks and produces a
Excel
> > > > > compatible (.csv) report with about 50 stats (like in the MS
system
> > > tester)
> > > > > for each stock tested.
> > > > >
> > > > > I like this add-in because it gives me an immediate idea of how
robust
> > > my
> > > > > system is. Testing my system on a large universe of stocks and
knowing
> > > for
> > > > > how many stocks the ROI actually improved, gives me a good (well,
> > > sometimes
> > > > > not so good...) indicator of the "robustness" of my system.
> > > > >
> > > > > The ratio (number of stocks with improved ROI)/(Total number of
> > stocks)
> > > > > makes a nice Robustness Index. It is also interesting to run tests
on
> > > > > different sectors or other categories of stocks. It would be
> > interesting
> > > to
> > > > > learn what kind of RB-Index other developers manage to obtain -
> > anybody
> > > > > care to share? I typically get 35% however I have have a sorting
> > problem
> > > > > related to negative B/H indices - so I think my ratio is actually
much
> > > > > better. Anybody calculated this ratio?
> > > > >
> > > > > My systems tend to be too specific and finding stocks that trade
well
> > > with
> > > > > my system was difficult. Using the MSBT you run your system on all
> > 8000
> > > > > stocks (or less) and see immediately which stocks performed well
with
> > > your
> > > > > system. I had some interesting surprises :-)
> > > > >
> > > > > For more info visit http://www.holygrailsoftware.com/msbt.shtml ,
the
> > > > > add-in costs $45.
> > > > >
> > > > > Happy trading!
> > > > > Herman.
> > > >
> > > >
> > > > __________________________________________________
> > > > Do You Yahoo!?
> > > > Get personalized email addresses from Yahoo! Mail
> > > > http://personal.mail.yahoo.com/
> > > >
> > >
> >
>
>
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