Re: [ROOT] user defined function in Global->Draw(...)

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Jun 12 2002 - 23:07:06 MEST


Hi Christophe,

You cannot specify a general function of the Tree variables with
the current version. This will be implemented in a future version.
(hope end of the year)

Rene Brun

On Wed, 12 Jun 2002, Christophe Clement wrote:

> Hi,
> 
> 	I have a TTree named Global with variables x and y.
> 	I can do for example:
> 	Global->Draw("x+y");
> 	or
> 	Global->Draw("sqrt(x**2+y**2)");
> 
> 	BUT:
> 	Can I somehow define a function F(x,y) and then use it in the
> 	following manner:
> 	Global->Draw("F(x,y)");
> 	?
> 
> 	Is there a way to do this?
> 	Thanks.
> 	Christophe
> 
> 	+-----------------------------------------------+
> 	| Christophe Clement / Swedish D0 Group		|
> 	| Fermilab MS 357, Batavia, IL 60510, USA	|
> 	| tel: +1 (630)-840 5400			|
> 	| fax: +1 (630)-840 6650			|
> 	| email: clement@fnal.gov			|
> 	+-----------------------------------------------+
> 



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