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One comment about your conditions:
>> Buy = Cross(G0,G1)AND Cross(G0,G2) OR Cross(G0,G1)
>> AND BarsSince(Cross (G0,G2)) <= 10 OR Cross(G0,G1);
When mixing multiple AND and OR conditions in the same expression, you
should use brackets to indicate operator precedence. For example:
(X AND Y) OR Z
is not the same thing as:
X AND (Y OR Z)
While there is a predefined order of precedence when no brackets are
used, I doubt most people would be sure of what it is, whereas
brackets make it obvious.
Regards,
GP
--- In amibroker@xxxxxxxxxxxxxxx, "rijnaars" <rijnaa@xxx> wrote:
>
> Thanks Ed
> I will show you the rules i use know.
>
> Buy = Cross(G0,G1)AND Cross(G0,G2) OR Cross(G0,G1) AND BarsSince(Cross
> (G0,G2)) <= 10 OR Cross(G0,G1);
>
> Only sometimes Buy = Cross(G0,G1) gives a wrong signal
>
> i do not wnat it to act if G1 has been going down for instance for
> last 7 days how do i implement this condition.
>
> (--- In amibroker@xxxxxxxxxxxxxxx, "Edward Pottasch" <empottasch@>
> wrote:
> >
> > hi,
> >
> > not sure exactly what you mean but maybe you could use OR instead
> of AND, so Buy = Cross(A1,A3) OR BarsSince(Cross(A1,A2)) <= 2;
> >
> > but on an array level you can construct more detailed constraints
> using:
> >
> > Buy = IIF(Cross(A1,A3) AND BarsSince(Cross(A1,A2)) <= 2,1, etc
> >
> > or just using OR in your contraint rule Buy = (constraint rule1) OR
> (constraint rule 2) OR (constraint rule 3) etc; like:
> >
> > Buy = (Cross(A1,A3) AND BarsSince(Cross(A1,A2)) <= 2) OR (Cross
> (A1,A3)) OR () etc;
> >
> > if you explain in detail how your constraint should work I can
> write it for you.
> >
> > regards, Ed
> >
> >
> >
> >
> >
> > ----- Original Message -----
> > From: rijnaars
> > To: amibroker@xxxxxxxxxxxxxxx
> > Sent: Monday, October 06, 2008 9:48 AM
> > Subject: [amibroker] Re: Help on conditional Buy signals
> >
> >
> > Thank you very much Ed this is what i needed
> > maybe you can help me on another aspect as well.
> >
> > if i do not want the cross signal to react if A1 crosses A3 where
> A3
> > has been going down for the last 4 days forinstance.
> > What condition should i then implement?
> > thanks in advance
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "gp_sydney" <gp.investment@>
> > wrote:
> > >
> > > Ed,
> > >
> > > That's saying the A1/A3 cross must be before the A1/A2 cross,
> not
> > > after. It should be the other way around:
> > >
> > > Buy = Cross(A1,A3) AND BarsSince(Cross(A1,A2)) <= 2;
> > >
> > > Regards,
> > > GP
> > >
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "Edward Pottasch"
> <empottasch@>
> > > wrote:
> > > >
> > > > this can be done like:
> > > >
> > > > buy = Cross(A1,A2) AND barssince(Cross(A1,A3)) <= 2;
> > > >
> > > > rgds,Ed
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: rijnaars
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Sent: Monday, October 06, 2008 8:08 AM
> > > > Subject: [amibroker] Help on conditional Buy signals
> > > >
> > > >
> > > > I want to use some conditions in a buy cross signal but i do
> > not know
> > > > how to add it.
> > > >
> > > > For instance :
> > > >
> > > > i have a buy signal buy = Cross(A1,A2)AND Cross(A1,A3)
> > > >
> > > > so in this case A1 crosses both A2 and A3
> > > > now i like to have a signal as well when the second cross is
> > made
> > > > within 2 days after the first cross how do i make this
> > condition?
> > > >
> > >
> >
>
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