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At
least one person who is not a fraet to tell the truth. In fact Equis is spending
much more time in publishing their own so called Performance Systems and their
Data on demand than they are fixing the TONS of bug or
flaws.
<FONT face=Arial color=#0000ff
size=2>M.
<FONT
face=Tahoma size=2>-----Original Message-----From:
owner-metastock@xxxxxxxxxxxxx [mailto:owner-metastock@xxxxxxxxxxxxx] On
Behalf Of Lionel IssenSent: zaterdag 30 juni 2001
01:40To: metastock@xxxxxxxxxxxxxSubject: Re: MAJOR FLAW
in SYSTEM TESTER
There are several flaws in the system tester.This
has been discussed here, but Equis wont/can't correct the
problems.
Lionel Issen<A
href="mailto:lissen@xxxxxxxxxxxxxx";>lissen@xxxxxxxxxxxxxx
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
----- Original Message -----
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black">From:
neo
To: <A title=metastock@xxxxxxxxxxxxx
href="mailto:metastock@xxxxxxxxxxxxx";>metastock@xxxxxxxxxxxxx
Sent: Friday, June 29, 2001 1:14
PM
Subject: MAJOR FLAW in SYSTEM
TESTER
I
called MetaStock support today because I was curious about some odd results
with the System Tester (ST). I then tested it myself to verify it.
THERE IS A MAJOR FLAW IN THE SYSTEM TESTER.
<SPAN
class=200402316-29062001>
If
one places a close long and a close short position and both the close and
the entry in the opposite direction are hit on that day, the position will
be closed but THE OPPOSITE POSITION WILL NOT BE ENTERED. It is even worse if
you choose to close on open the following day. The opposite signal will not
be allowed to trigger until the following day.
<SPAN
class=200402316-29062001>
To
test this I used the following simple system:
<SPAN
class=200402316-29062001>Enter Long: Cross(Mov(C ,3 ,S ), Mov(C ,18 ,S )
)
<SPAN
class=200402316-29062001>Close Long: Cross(Mov(C ,18 ,S ), Mov(C ,3 ,S )
)
<SPAN
class=200402316-29062001>Enter Short: Cross(Mov(C ,18 ,S ), Mov(C ,3 ,S )
)
<SPAN
class=200402316-29062001>Close Short: Cross(Mov(C ,3 ,S ), Mov(C ,18 ,S )
)
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>Because the Enter Long & Close Short as well as
the Enter Short & Close Long are identical, one would expect to
show at every point both a closing of one position and an opening of the
other. This does not happen!
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>The same is true for Experts. If both a Close and
an Enter are triggered on the same day, only 1 symbol will be displayed.
They are displayed in order from top down.
<SPAN
class=200402316-29062001>
I
suggest two actions. First, copy the message above and send it to
MetaStock Feedback at:
<SPAN
class=200402316-29062001>
<A
href="mailto:suggestions@xxxxxxxxx";>suggestions@xxxxxxxxx
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>Second, until this is fixed, test only longs or
shorts by themselves unless you are using a reversal system where you are
not using Close.
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>Below is information from the MetaStock Help
file.
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>neo
<SPAN
class=200402316-29062001>________________________________
<SPAN
class=200402316-29062001>
<SPAN
class=200402316-29062001>This is the page in MetaStock help
file:
The System Editor
Dialog
The System Editor dialog lets you
name the system test, store notes regarding the system, and define the four
trading rules.The trading rules use the formula syntax explained in the
MetaStock formula language section (see What is the MetaStock Formula
Language?). This syntax is very similar to the syntax used to enter
formulas in spreadsheets. Each trading rule may contain up to 1024
characters. If you are unfamiliar with the MetaStock formula
language, you should see What is the MetaStock Formula
Language?.
Remember that a trading system
can be in one of three different states: long, short, or
out.
When out, simple interest is
earned at the rate specified in the System Testing Options dialog (see
System Testing Options).You use the four tabs to select which rule to
display and edit.
Enter Long. This rule
specifies when the system should buy long. A long position can only be
entered when the system is short or out. When in a long position, this
rule is ignored.
Close Long. This rule
specifies when the system should close a long position. When in a
short or out position, this rule is ignored.<FONT face=Arial
color=#008080 size=4>
Enter Short. This rule specifies when the system should sell
short. A short position can only be entered when the system is long or
out. When in a short position, this rule is ignored.
Close Short. This rule specifies when the system should cover
(i.e., close) a short position. When in a long or out position, this
rule is ignored.
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