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Sorry, my bad. I misunderestood your question. I thought you
explicitly wanted to pass a scalar, as opposed to any valid variable
(which of course an array is).
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "Mike" <sfclimbers@xxx> wrote:
>
> It would appear that you have misunderstood the return value of
> BarsSince. BarsSince returns an array, not a scalar. So in the Buy1
> case, you are not passing the simple value that you might think you
> are. You would have to pass something along the lines of Ref(y, 0)
to
> pass the current value of y, and thus be a fair comparrison to
> passing the scalar -5.
>
> http://www.amibroker.com/guide/afl/afl_view.php?id=23
>
> Mike
>
> --- In amibroker@xxxxxxxxxxxxxxx, "chorlton_c_hardy" <chorlton-c-
> hardy@> wrote:
> >
> >
> > Hello Tomasz,
> >
> > If Ref() accepts variable periods, can you clarify why the code
> below
> > doesn't work?
> >
> > x = IIf(H == HHV(H, 30), 1, 0);
> > y = BarsSince(x);
> > y = y*-1;
> >
> > Buy1 = x AND AccDist() > Ref(AccDist(),y);
> > Buy2 = x AND AccDist() > Ref(AccDist(),-5);
> >
> > PlotShapes( shapeUpArrow*Buy1, colorGreen, 0, L, -10 );
> > PlotShapes( shapeUpArrow*Buy2, colorBlue, 0, H, -10 );
> >
> >
> > The Buy2 signal will plot with no problems but the Buy1 signal
> won't.
> > I assumed this was because of the variable y in the Ref()
function.
> > However, if Ref() can accept variables then can you explain what
> I'm
> > doing wrong?
> >
> > Any help much appreciated,
> >
> > Chorlton
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@>
> > wrote:
> > >
> > > Ref accepts variable periods So all these workarounds are not
> > required.
> > >
> > > Ref( C, -x ) works perfectly fine.
> > >
> > > Best regards,
> > > Tomasz Janeczko
> > > amibroker.com
> > > ----- Original Message -----
> > > From: "dbwyatt_1999" <dbw451@>
> > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > Sent: Saturday, November 10, 2007 3:30 PM
> > > Subject: [amibroker] Re: Passing a variable into the Ref()
> function
> > >
> > >
> > > > Variables are arrays in AB, so Ref(Close,-x) probably would
not
> > > > work. If you have a predefined set of values for x, you
could
> > use
> > > > iif statements:
> > > >
> > > > myValue = iif(x==5, Ref(C,-5), iif(x==10, Ref(C,-10), iif
> (x==15,
> > Ref
> > > > (C,-15),Null)));
> > > >
> > > > However the best way to access variable array index offsets
is
> to
> > use
> > > > a loop:
> > > >
> > > > i = 0;
> > > > x = Param("x",10,1,100,1);
> > > > for (i=x; i<BarCount; i++) {
> > > > myValue[i] = Close[i-x];
> > > > }
> > > >
> > > > Regards,
> > > >
> > > > David
> > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "chorlton_c_hardy"
<chorlton-
> c-
> > > > hardy@> wrote:
> > > >>
> > > >>
> > > >> Hello All,
> > > >>
> > > >> With regard to the Ref() function in AB, is there any way to
> > pass a
> > > >> variable into it rather than using a specific value?
> > > >>
> > > >> For example:
> > > >>
> > > >> Rather than writing Ref(Close,-10), I want to write Ref
(Close,-
> > x)
> > > > where
> > > >> x has been defined earlier in my code.
> > > >>
> > > >>
> > > >> Thanks in advance,
> > > >>
> > > >> Chorlton
> > > >>
> > > >
> > > >
> > > >
> > > >
> > > > Please note that this group is for discussion between users
> only.
> > > >
> > > > To get support from AmiBroker please send an e-mail directly
to
> > > > SUPPORT {at} amibroker.com
> > > >
> > > > For NEW RELEASE ANNOUNCEMENTS and other news always check
> DEVLOG:
> > > > http://www.amibroker.com/devlog/
> > > >
> > > > For other support material please check also:
> > > > http://www.amibroker.com/support.html
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
>
Please note that this group is for discussion between users only.
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