Re: Questions about TTree::Draw()

From: Axel Schwank (schwank@mail.desy.de)
Date: Tue Aug 11 1998 - 13:46:27 MEST


Dear ROOTers,
I also observe the problem in TTree::Draw() in the new version 2.00/10
(tried on IRIX g++ and Solaris cc) reported by Mark Boulay.
I also have a TTree of TClonesArrays.
ROOT hangs trying to draw data from the TClonesArray. Also excluding the
events with no entries in the array, e.g.
T->Draw("DTRA.fPhi_tr","DTRA_ > 0") 
doesn't work while I'm still able to draw the number of entries, i.e.
T->Draw("DTRA_").
But the events with empty TClonesArrays never had to be excluded in
previous versions,
T->Draw("DTRA.fPhi_tr")
always worked fine. Seems to be a problem of the new version.

Regards,
Axel


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Axel Schwank

DESY H1-F22
Notkestrasse 85
D-22607 Hamburg

Rm. 1b/269
Tel (+49 40) 8998-3560
Fax (+49 40) 8998-4385 

e-mail 	schwank@mail.desy.de
Quix	0165-6-2705109

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