[ROOT] TTree->Draw does not accept "=" as Boolean operation

From: Malcolm Davidson (davidson@cesbio.cnes.fr)
Date: Tue Dec 05 2000 - 15:13:58 MET 

Hello,

I'm using the TTree Draw method for displaying histograms and was very
surprised that the following
worked:

iem_data->Draw("shh:reps","theta <=25") // Draw all coefficients for
incidence angles le to 25 degrees

whereas the following did not (I do have theta's = 25 in the ntuple)

root [7] iem_data->Draw("shh:reps","theta=25")
iem_data->Draw("shh:reps","theta=25")
*ERROR 26 :
 Unknown name : "theta=25"
(Int_t)(-1)

Is this normal ? It seems to me that the equal condition is quite
important as well ?

Many thanks in advance.

Malcolm

p.s. I am using root compiled on Linux Mandrake 7.2 (i386).

<>------------------------------------------------<>
Malcolm W. J. Davidson

Centre D'Etudes Spatiales de la Biosphere (CESBIO)
UMR 5639 CNES-CNRS-UPS
18, Avenue Edouard Belin
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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