Hi Rooters, I'm encountering some problems while copying a tree. I put an examplein : /afs/in2p3.fr/home/g/greder/public/testnew.tar.gz To sum up , I want to do som selection on events in a tree. Also I want to remove some branches I don't use. I wrote a small macro to do this but there's a problem when copying one branch : Gtr401atDCA, it's completely empty in the output except for one variable ntrk401DCA. All the other branches are correctly copyed. I don't know if it's a branch pb, I don't think my code does something wrong since the other branches are ok, but I don't know how to check the branch "state" sebastien. pd : to use the prog : root .L teststream.C main("out.root") ==> output file. I'm running on RH 6.4 with version 03.02.07 compiled with gcc 2.91
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