Re: [amibroker] How to plot volume in price pane using 1/3 of pane?

[Nigel Rowe <rho@xxxxxxxxxxxxxxx>]

On Monday 10 October 2005 03:20, Tomasz Janeczko wrote:
> Hello,
>
> There is easier to use technique, which is already shown by built-in
> volume code:
>
> Plot( Volume, _DEFAULT_NAME(), ParamColor("Color", colorBlueGrey ),
> ParamStyle( "Style", styleHistogram | styleOwnScale | styleThick,
> maskHistogram  ), 2 );
>
>
> This '2' in the end controls how tall volume histogram is. 2 means
> 1/2 of pane. 3 would mean 1/3 of pane. You can parametrize it to
> allow free-scaling:
>
> Plot( Volume, _DEFAULT_NAME(), ParamColor("Color", colorBlueGrey ),
> ParamStyle( "Style", styleHistogram | styleOwnScale | styleThick,
> maskHistogram  ), Param("1/n Height", 2, 1, 10, 0.25 ) );
>
> Best regards,
> Tomasz Janeczko
> amibroker.com


Tomasz, where is this documented?  I have searched the help and the 
release notes for 4.70.5 and can find no mention of this (useful) 
feature of styleOwnScale.  I'm happy to be proved incompetent at 
searching, if you can supply a pointer to it in any of the amibroker 
docs.

Is the following an accurate description of the various uses of minvalue 
and maxvalue in a styleOwnScale Plot()?  Or is there other magic I 
don't know about?

* If arguments five (minvalue) and six (maxvalue) are not supplied, the 
plot will be autoscaled to the data (independently of any other plot in 
the pane) and will occupy the full height of the pane.

* If argument five (minvalue), but not six (maxvalue) is supplied, the 
plot will be autoscaled to the data (independently of any other plot in 
the pane) and will occupy 1/n of the height of the pane.  (where n is 
the suppled argument.)

* If both arguments five (minvalue) and six (maxvalue) are supplied, the 
plot will occupy the full height of the pane and they will define the 
plot min and max values.

Thanks,
	Nigel


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