Dear Rooters,
I've got two TTrees, tree1 and tree2, with the same variable list
(EventNum X Y Z). I'd like to select those events in tree2 which have the
same EventNum as the events in tree1. I can do this with a couple of for
loops but it takes too long. I also tried this:
Int_t numberOfEvents = tree1->GetEntries();
Char_t myString[20];
for (Int_t i=0; i<numberOfEvents; i++) {
tree1->GetEvent(i);
sprintf(myString,"\"EventNum == %d \"",EventNum);
tree2->Draw(">>+eventList",myString);
}
but that didn't work. I tried a similar thing with a TCut object instead
of myString...didn't work either. Any ideas?
I'm using root version 3.10/02, gcc 3.2.2, RH9.0.
Many thanks,
Mike.
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