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Hello,
LastValue is used to guarantee the same scaling is applied
to all bars. Otherwise you would get distorted chart (different scaling
for different bars) - please take a look at the levels of volume peaks without
LastValue() and you will see what I mean.
As for your second question - AFL does not provide a method
to get display parameters.
The scaling is done automatically by AmiBroker and you can not
control "automatic" scaling mode.
Best regards,
Tomasz Janeczko
===============
AmiBroker - the comprehensive share manager.
http://www.amibroker.com
----- Original Message -----
From: <dreamcircle60@xxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Friday, November 30, 2001 5:34 PM
Subject: [amibroker] Re: Scaling volume to fit on price chart
>
> Hi Tomasz,
>
> Thank you very much for your prompt reply! Adding LastValue() did
> not seem to change anything. Since Highest() returns a number and
> LastValue accepts an array as the argument, I do not understand why
> you added LastValue() to the formula. (I noticed that you also wrote
> the formula that way in your Foreign example in the reference guide)
>
> It appears to me that there is no way to detect the highest value
> within the visible pane (only the highest value back to the beginning
> of the data). If that is correct, then I don't think there is any
> way to scale the volume in the same manner as the Price Pane (which
> you already mentioned).
>
> Thanks,
> jim
>
> --- In amibroker@xxxx, "Tomasz Janeczko" <amibroker@xxxx> wrote:
> > Hello,
> >
> > You would need to write:
> >
> > Graph0 = Close;
> > Graph0Style = 64;
> > Graph1 = Volume;
> > Graph1Style = 6;
> > Graph1 = (LastValue(Highest(Graph0))/LastValue(Highest(Graph1))) *
> Graph1;
> >
> > The price pane in AmiBroker is not implemented in AFL (yet)
> > - it uses completely separate scaling for volume and price axes and
> is somewhat
> > "special" (buy/sell arrows go only there).
> >
> > Best regards,
> > Tomasz Janeczko
> > amibroker.com
> >
> > ----- Original Message -----
> > From: <dreamcircle60@xxxx>
> > To: <amibroker@xxxx>
> > Sent: Thursday, November 29, 2001 11:21 PM
> > Subject: [amibroker] Scaling volume to fit on price chart
> >
> >
> > >
> > > Dear Tomasz and others,
> > >
> > > I am basically starting out learning about AFL, and I am trying
> to
> > > plot volume on the same panel as the price. Thus I need to scale
> the
> > > volume to fit and right now I am using the Highest() function to
> > > scale.
> > >
> > > graph0 = close;
> > > graph1 = volume;
> > > graph1 = (Highest(graph0)/Highest(graph1)) * graph1;
> > >
> > > The problem is that I would like to use the highest value which
> is
> > > displayed (not the absolute highest value back to the beginning
> of
> > > time). Can anyone suggest how I might do that, or suggest a
> better
> > > method for scaling the volume?
> > >
> > > Tomasz: are you able to share the AFL code for the basic Price
> > > Indicator (if there is AFL code) ? This would provide a good
> example
> > > for me to work off of.
> > >
> > > Thank you very much,
> > >
> > > jim
> > >
> > >
> > >
> > >
> > >
> > >
> > > Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
> > >
> > >
> > >
>
>
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
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