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Irv,
I run both Metastock Pro 7.03 and Tradestation 4, Build 27. I've done
comparisons on the System Testing capability of both and found them to be
very close. Not exact, but very close. I set up tests that generated many
trades (>2000 on 13000 bars--TS4's limit) against the same datafile and
compared the results.
The real challenge is to make sure that your conditions are exactly the same
(e.g. Metastock Enter & Exit on Open, Delay = 1 is the equivalent of Buy
Market or Sell Market in Easylanguage).
Your system tests are going to zero very quickly because you are using $$$
amounts. This method implicity assumes that you are fully reinvesting 100%
(or 200% on margin) with each trade...not likely in real trading. I prefer
to use "Points Only" tests to give me an idea of how many points per
contract or dollars per share the system would have generated or ultimately
lost. You could then export the trades into Excel and apply any sort of
position sizing algorithm (e.g. Optimal F) to your trades to create a
dollarized equity line.
Dave Nadeau
Fort Collins, CO
-----Original Message-----
From: owner-metastock@xxxxxxxxxxxxx [mailto:owner-metastock@xxxxxxxxxxxxx]On
Behalf Of Irv
Sent: Thursday, May 31, 2001 3:30 PM
To: metastock
Subject: System Tester accuracy q (from 23 yrs in mkts)
Hi,
I know y'all went through excruciating agony over the single- vs.
double-precision integer deal earlier, and I can appreciate the problems it
could cause strictly mechanical systems, but I would like to know if anyone
has doublechecked the MS ST results against other programs, or self-coded
routines? There are just SO many STests that go to zero so quickly (trading
longs and shorts), it makes me wonder.
In case this strikes some listers as a dunce's question, over 95% of my
income has come from the markets for the past 23 years. But yes, I'm not
that familiar with MS.
Irv
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