Hi Nagatron
The most effective way to learn the MetaStock
Formula Language (in my opinion) is to work with it rather than read about it.
The MFL section of the User Manual gives you most of the basics but your skills
will develop more slowly if you don't practice creating your own code. I doubt
that the Formula Primer has much to teach beyond the basics but some users do
find it helpful.
Your entry formula can be written in a number of
different ways - the style used isn't as important as the logical
correctness. When combining AND and OR logical operators, as in these examples
offering solutions to your question, it's important to get the operator
precedence right. If in doubt use parentheses. As you get more familiar with the
language you'll become more aware of the pitfalls and their solutions.
O>Mov(C,20,E) AND
Mov(C,20,E)>Mov(C,50,E)
AND
V>Mov(V,30,E) AND
(Ref(L,-3)<Mov(C,20,E)
OR Ref(L,-5)<Mov(C,20,E));
M:=Mov(C,20,E);
O>M AND M>Mov(C,50,E) AND
V>Mov(V,30,E) AND
(Ref(L,-3)<M OR Ref(L,-5)<M);
M:=Mov(C,20,E);
(O>M) * (M>Mov(C,50,E)) *
(V>Mov(V,30,E)) *
(Ref(L,-3)<M OR Ref(L,-5)<M);
M:=Mov(C,20,E);
If(O>M AND M>Mov(C,50,E)
AND V>Mov(V,30,E) AND
(Ref(L,-3)<M OR
Ref(L,-5)<M),1,0);
Roy
----- Original Message -----
Sent: Sunday, November 01, 2009 11:40
PM
Subject: [EquisMetaStock Group] Need to
write a simple cross over code and need help
I'm reading the formula primer and it's pretty bad. Unclear. I need to
write a pretty easy formula:
entry:
Open is > 20
EMA
20 EMA is > 50 EMA
Volume is > 30 EMA of
volume
----------------------------------
low from 3 days
ago is < 20 EMA
or
low from 5 days ago is < 20
EMA
exit:
20 EMA < 50 EMA
That's it. You should probably
test this out yourself. It works way to well in bull markets. Thanks in
advance!
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