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Perhaps this helps:
StartBar= LastValue(Status("firstvisiblebarindex"));
LastBar= LastValue(Status("lastvisiblebarindex"));
Range=LastBar-StartBar;
// You've now defined the range of bars that you see
// Next
HHVRange=Lastvalue(HHV(Varx,Range);
LLVRange=LastValue(LLV(Varx, Range);
//Or you could create a loop in order to specifically define HHV
(Varx, Range)[LastBar], etc.
PS
--- In amibroker@xxxxxxxxxxxxxxx, Andy Davidson <AndyDavidson@xxx>
wrote:
>
> Does anyone know if it's possible to retrieve the *currently
displayed*
> axis min and max values for a given plot?
>
> I'm trying to scale a binary plot based on the min/max values of
another
> plot in the same window. Styleownscale would have been perfect, but
for
> the fact that the zero-reference lines don't tie up as the plot is
> scrolled (the first plot is unbounded a so the zero point shifts up
and
> down with auto-scaling - think of something along the lines of an
MACD
> Histogram plot).
>
> The best fix I've found so far is to use the StDev (or HHV/LLV) of
the
> first plot to determine a scaling factor for the second plot. The
> problem with that is that if the StDev range is too short then it
looks
> all "wobbly" (i.e., not what binary plots are supposed to look
like), if
> it's too long then past values that are off-screen influence the
> scaling...a problem when they are anomalously high or low in
relation to
> the current values. Manual scaling of the "styleownscale" plot type
has
> similar problems.
>
> What I've got serves the purpose in the event that I'm not missing
> something...if I am though, I'd be grateful if someone could point
out
> what it might be.
>
> Andy
>
>
>
>
> ___________________________________________________________
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