Hello, ROOters! Would you be so kind to give me some explanation. I am using program to create TTree where SetAutoSave(1000000); is set. When looking output files inside root I am getting: TFile** zee_tape.root Simple ROOT Ntuple TFile* zee_tape.root Simple ROOT Ntuple KEY: TTree isl;13 ISL test KEY: TTree isl;12 ISL test Why I have 2 keys? I tried to see which is the difference (probably in wrong way) between 2 KEYs: TFile* f1 = new TFile("zee_tape.root"); TTree *a = (TTree*) f1->Get("isl;13"); a->Print(); Here I am getting normal print out and seems that TTree has 120 000 entries. Making after TTree *b = (TTree*) f1->Get("isl;12"); b->Print(); It works fine, but it has 119639 events... I guess that isl;12 is something left by Autosave, but why it was not deleted? Is it a normal behavior? regards, Elena I am using ROOT Version 3.02/07 on Linux R.H. 6.1
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