Re: [ROOT] Missing value support in plots

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Apr 11 2001 - 21:55:58 MEST


Hi Malcolm,

I am certainly missing some elements in your request.
It seems to be more logical to eliminate the bad values while you
fill your histogram than a posteriori.
With Root, you typically store your data as an ntuple (Tree) and project
the data to an histogram with a selection.

Rene Brun

On Wed, 11 Apr 2001, Malcolm Davidson wrote:

> Hello Root Developers,
> 
> I don't know if "missing value" support in displaying histogram and graph 
> plots has already been added to the wish list ? Does anybody else miss this 
> feature ?
> 
> It's one of the features that I really like in IDL and am currently sorely 
> missing in my ROOT analysis. It consists basically in the the ability to 
> designate certain values as "missing" or "bad" data and have the 
> contour/plot routines ignore this data when building up the 
> image/contour/plot.
> 
> Continue the good work.
> 
> Malcolm
> 
> <>------------------------------------------------<>
> Malcolm W. J. Davidson
> CESBIO - UMR 5639 CNES-CNRS-UPS
> 18 Avenue Edouard Belin
> BP 2801
> F-31401 Toulouse Cedex 4  France
> e-mail : davidson@cesbio.cnes.fr
> phone (33)(0)5.61.55.85.84
> fax   (33)(0)5.61.55.85.00
> <>------------------------------------------------<>
> 



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