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Bruce,
Thanks, Mine did not work when I scrolled back in time, but yours
does. Thanks for confirming the scalar array thing. I tear my hair
out over things like that.
Bill
--- In amibroker@xxxxxxxxxxxxxxx, "bruce1r" <bruce1r@xxxx> wrote:
> Bill -
>
> Yes. You need to use LastValue() to get a scalar value. But even
> with that, I think that your code will have an issue if you scroll
> back in time and right tick is not the last bar. For a quick
> solution, try -
>
> data = Close;
> Minvalue = LastValue(Lowest(IIf(Status("barvisible"), data,
999999)));
> Maxvalue = LastValue(Highest(IIf(Status("barvisible"), data,
> -999999)));
>
> -- Bruce R.
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "BillBarack" <wbarack@xxxx> wrote:
> > Graham,
> >
> > No, its not in the PortValue statement. I succesfully plotted it
> > without trying the styleownscale functionality. Having been
> > succesful, I was trying to shrink the plot to the bottom half of
> the
> > screen to make room for an extensive Title statement.
> >
> > For some reason, it doesn't like the HighestSince, LowestSince,
> HHV,
> > LLV functions used to define MinVal and MaxVal.
> >
> > When I put in:
> >
> > BarRange = LVB - FVB +1;
> > MinVal = 0.8 * LastValue(LLV(PortValue,BarRange));
> > MaxVal = 1.5*LastValue(HHV(PortValue,BarRange));
> >
> > it works. Is the answer that HighestSince, LowestSince, HHV, LLV
> are
> > all arrays? and LastValue makes it a scalar which is what
MinValue
> > and MaxValue want in the Plot statement?
> >
> > That's my best guess.
> >
> > Bill
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx> wrote:
> > > Sounds like something in the Portvalue statement ?
> > >
> > >
> > > Cheers,
> > > Graham
> > > http://groups.msn.com/asxsharetrading
> > > http://groups.msn.com/fmsaustralia
> > >
> > > -----Original Message-----
> > > From: BillBarack [mailto:wbarack@x...]
> > > Sent: Friday, 19 December 2003 7:11 AM
> > > To: amibroker@xxxxxxxxxxxxxxx
> > > Subject: [amibroker] Re: Visible range shown on chart
> > >
> > >
> > >
> > >
> > > Graham,
> > >
> > > Thanks, it helps, but I keep getting error messages. Any ideas
> > here?
> > > Am I mixing variable types or something like that?
> > >
> > > Bill
> > > PortValue = my expression;
> > >
> > > Try #1:
> > > barvisible = Status("barvisible");
> > > //firstvisiblebar = barvisible AND NOT Ref( barvisible, -1 );
FVB
> =
> > > barvisible AND NOT Ref( barvisible, -1 ); LVB = barvisible AND
NOT
> > > Ref(barvisible,1); BarRange = LVB - FVB +1; MinVal =
> > > LLV(PortValue,BarRange); MaxVal = HHV(PortValue,BarRange);
> > >
> > > Error Message for Try #1:
> > >
> > > Line 182, Column 61:
> > >
> > > Plot(PortValue,"",colorBlack,4|styleOwnScale,MinVal, MaxVal);
> > > ------------------------------------------------------------^
> > >
> > > Bad args.
> > > 5-th argument of function call has invalid (or unsupported) type
> > >
> > > Try #2:
> > > barvisible = Status("barvisible");
> > > //firstvisiblebar = barvisible AND NOT Ref( barvisible, -1 );
FVB
> =
> > > barvisible AND NOT Ref( barvisible, -1 ); LVB = barvisible AND
NOT
> > > Ref(barvisible,1); MinVal = LowestSince(FVB,PortValue); MaxVal =
> > > HighestSince(FVB,PortValue);
> > > Plot(PortValue,"",colorBlack,4|styleOwnScale,MinVal, MaxVal);
> > >
> > > Error Message for Try #2:
> > > Line 178, Column 61:
> > > MinVal = LowestSince(FVB,PortValue);
> > > MaxVal = HighestSince(FVB,PortValue);
> > > Plot(PortValue,"",colorBlack,4|styleOwnScale,MinVal, MaxVal);
> > > ------------------------------------------------------------^
> > >
> > > Bad args.
> > > 5-th argument of function call has invalid (or unsupported) type
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "Graham" <gkavanagh@xxxx>
wrote:
> > > > Use
> > > > Status( "barvisible" );
> > > >
> > > > Returns 1 if the bar is on screen
> > > >
> > > >
> > > >
> > > > Cheers,
> > > > Graham
> > > > http://groups.msn.com/asxsharetrading
> > > > http://groups.msn.com/fmsaustralia
> > > >
> > > > -----Original Message-----
> > > > From: BillBarack [mailto:wbarack@x...]
> > > > Sent: Friday, 19 December 2003 6:21 AM
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Subject: [amibroker] Visible range shown on chart
> > > >
> > > >
> > > > I've been struggling, trying to find a way to express in AFL,
> the
> > > > range currently shown on the chart. By this I mean, the Last
> bar
> > > > visible minus the first bar visible.
> > > >
> > > > Can anyone point me in the right direction?
> > > >
> > > > Thanks
> > > >
> > > > Bill
> > > >
> > > >
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