Hello all,
I would like to use PROOF when doing an analysis over a data set that contains two Trees (Analysis, and AnalysisII) under one directory. I am just interested in one of the Trees. I did the following:
root [0] TFile *f1 = TFile::Open(“dataset.root”)
root [1] directory->cd()
root [2] Analysis->MakeSelector(“MyAnalysis”)
but then, one I tried to use this Selector:
root [0] TDSet* dataset = new TDSet(“TTree”, “Analysis”);
root [1] dataset->Add(“file.root”)
(Bool_t)1
root [2] TProof *p = TProof::Open(" ");
+++ Starting PROOF-Lite with 2 workers +++
Opening connections to workers: OK (2 workers)
Setting up worker servers: OK (2 workers)
PROOF set to parallel mode (2 workers)
root [3] p->Process(dataset,“MyAnalysis.C+”);
Info in TProofLite::SetQueryRunning: starting query: 1
Looking up for exact location of files: OK (1 files)
Looking up for exact location of files: OK (1 files)
10:16:21 22391 Wrk-0.0 | Error in TDSet::GetEntries: cannot find tree “Analysis” in file.root
Error in TPacketizer::ValidateFiles: cannot get entries for file.root (
Info in TPacketizer::TPacketizer: no valid or non-empty file found: setting invalid
Error in TProofPlayerLite::InitPacketizer: instantiated packetizer object ‘TPacketizer’ is invalid
Error in TProofPlayerLite::Process: cannot init the packetizer
Info in TProofLite::UpdateDialog: processing was aborted - 0 events processed
it is the same if I tried to access with:
root [0] TDSet* dataset = new TDSet(“TTree”, “directory/Analysis”);
Any idea on how to solve this issue of accessing a Tree inside a directory?
Thanks in advance,
Ana.