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Bob is 100% correct.
Second assignment completely OVERWRITES previous "buy" array
therefore:
Buy = cond1;
Buy = cond2;
works exactly the same as:
Buy = cond2;
alone.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Bob Jagow" <bjagow@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 06, 2003 8:35 PM
Subject: RE: [amibroker] Re: Syntax Question
> Makes no sense to me, Dimitris.
> Could we keep from confusing the troops by agreeing that
> Buy = cond1;
> Buy = cond2;
> should not and in fact does not result in Oaring the two statements?
>
>
> Bob
>
> -----Original Message-----
> From: DIMITRIS TSOKAKIS [mailto:TSOKAKIS@xxxxxxxxx]
> Sent: Monday, May 05, 2003 11:55 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] Re: Syntax Question
>
>
> Bob,
> The
> Buy = IIf(Cum(1)%20,0,1);
> Buy = IIf(Cum(1)%42,0,1);
> will produce Buy signals every 30 bars.
> Try the
> Buy=IIf(Cum(1)%20,0,1);
> Buy=IIf(Cum(1)%30,0,1);
> Filter=Buy;
> AddColumn(Cum(1),"");
> DT
>
> > -----Original Message-----
> > From: Bob Jagow [mailto:bjagow@x...]
> > Sent: Monday, May 05, 2003 5:55 PM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: RE: [amibroker] Re: Syntax Question
> >
> >
> > Looks like only the last assignment counts, Dimitris.
> > Try
> > ----
> > Buy = IIf(Cum(1)%20,0,1);
> > Buy = IIf(Cum(1)%42,0,1);
> > ----
> > On the other hand, there's always the chance that
> > ----
> > Buy = IIf(Cum(1)%20,0,1);
> > Do_it_now_Dammit;
> > Buy = IIf(Cum(1)%42,0,1);
> > ----
> > could trigger buys every 20 days as well as every 42 days.
> >
> > Regards,
> > Bob
> >
> >
> > -----Original Message-----
> > From: DIMITRIS TSOKAKIS [mailto:TSOKAKIS@x...]
> > Sent: Monday, May 05, 2003 10:18 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Re: Syntax Question
> >
> >
> >
> > > -----Original Message-----
> > > From: Sam Levy [mailto:slevy1220@x...]
> > > Sent: Monday, May 05, 2003 8:48 AM
> > > To: amibroker@xxxxxxxxxxxxxxx
> > > Subject: [amibroker] Syntax Question
> > >
> > >
> > > Is the following correct?:
> > >
> > > If I want a buy signal if both of two conditions are true, I
> would
> > > code:
> > >
> > > buy=cond1 and cond2;
> > >
> > > If I want a buy signal if either is true, I would code:
> > >
> > > buy=cond1 or cond2;
> > >
> > > What is the difference between those and:
> > >
> > > buy=cond1;
> > > buy=cond2;
> >
> > The main difference is that
> > buy=cond1 or cond2;
> > is one-line code and
> > buy=cond1;
> > buy=cond2;
> > is two-line code.
> > AFL is executed line by line.
> > So, in the second case you ask
> >
> > buy=cond1;// buy when cond1 is true
> > buy=cond2;// buy when cond2 is true
> > AFL will go to the next statement with the last info : buy=cond2;
> > Sometimes, this property is useful :
> >
> > D=5;
> > M=MA(H,D);
> > PLOT(M,"",1,1);
> > D=10;
> > M=MA(H,D);
> > PLOT(M,"",2,1);
> > D=15;
> > M=MA(H,D);
> > PLOT(M,"",3,1);
> > will plot 3 different MAs, although only one is defined, namely M.
> > On the other side the
> >
> > D=5;
> > M=MA(H,D);
> > D=10;
> > M=MA(H,D);
> > D=15;
> > M=MA(H,D);
> > PLOT(M,"",1,1);
> > PLOT(M,"",2,1);
> > PLOT(M,"",3,1);
> > will plot 3 MAs identical to MA(H,15)
> > Dimitris Tsokakis
> >
> >
> >
> >
> >
> >
> > > I would be grateful if someone would set me straight on this.
> > >
> > >
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