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Maybe you can have the system look forward to set the position to close
at the close the day before and open the opposite trade at the open the
next day.
For example:
Enter Long: Cross(Mov(C ,3 ,S
), Mov(C ,18 ,S )
)
[on open]
Close Long: Ref(Cross(Mov(C ,18 ,S ), Mov(C ,3 ,S )
),+1) [on close]
Enter Short: Cross(Mov(C ,18 ,S ), Mov(C ,3 ,S )
)
[on open]
Close Short: Ref(Cross(Mov(C ,3 ,S ), Mov(C ,18 ,S ) ),+1)
[on close]
Would this work for your system???
Michael
At 02:14 PM 6/29/2001 -0400, you wrote:
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.
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.
To test this I used the
following simple system:
Enter Long: Cross(Mov(C ,3 ,S
), Mov(C ,18 ,S ) )
Close Long: Cross(Mov(C ,18 ,S
), Mov(C ,3 ,S ) )
Enter Short: Cross(Mov(C ,18 ,S
), Mov(C ,3 ,S ) )
Close Short: Cross(Mov(C ,3 ,S
), Mov(C ,18 ,S ) )
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!
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.
I suggest two actions. First,
copy the message above and send it to MetaStock Feedback at:
suggestions@xxxxxxxxx
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.
Below is information from the
MetaStock Help file.
neo
________________________________
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.
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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