Dear Rooters,
Suppost that I have a tree with large number of event (~1M). The tree contains a leaf jet_pt … How can I quick draw of jet_pt of 1000 events at the interpreter?. I mean how can I modify this code to draw jet_pt over 1000 events?
root -l Sample/CaloCalibTree.root root[1] CaloCalibTree->Draw(“jet_pt”)
Thank you
Hi,
that’s what we have documentation for Check root.cern.ch/root/html/TTree#TTree:Draw. Hint: you probably care about the parameter called “nentries”.
Cheers, Axel.
Thank you Axel This command works perfectly! CaloCalibTree->Draw(“jet_pt”, “”, “”, 1000) Cheers, Duong