How to use Tchain to traverse multiple data files in a directory

I want to traverse hundreds of. Dat files in a directory and save them as. Root files.

Hi @ouyangzb ,
I don’t think you can inject dat files into a TChain (@pcanal can correct me if I’m wrong).

However you can read each dat file into a TTree with TTree::ReadFile or similar, and you can write out each TTree as a root file, in a for loop.


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