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Multithread RDataFrame.Snapshot with big files and lots of columns
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9
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81
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September 29, 2025
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String to TString
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5
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44
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September 22, 2025
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Increase accuracy of leaves when using RDataFrame.Mean
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7
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42
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September 29, 2025
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Update TTreeReader addresses failed, for a TTree in a TMemFile, read from TSocket
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2
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20
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September 29, 2025
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Adding friend to TChain created from file saved using RDataFrame with EnableImplicitMT
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2
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37
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August 13, 2025
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How to create sub-sub branch manually
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4
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61
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July 9, 2025
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Reading old tree returns error
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11
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56
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July 2, 2025
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Use TTree::Draw() to a histogram with weights and weight errors coming from branches
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3
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48
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May 30, 2025
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TTree split level and custom classes for SetBranchAddress
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22
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106
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May 27, 2025
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Would it be a meaningful idea to add a description to TBranches?
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3
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34
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May 18, 2025
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Segmentation Fault when accessing an array of TVector3 elements from Leaf
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4
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37
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May 1, 2025
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How can I separate out the event ID's in a TChain that have the same value
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3
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28
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April 29, 2025
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Accessing the source TChain/TTree of a RDataFrame
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2
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24
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May 13, 2025
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histo.Integral() vs looping tree to get sumw
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2
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23
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April 14, 2025
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Reading a large ROOT TTree fills RAM
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4
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75
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April 12, 2025
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Get data from a Zombie file
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3
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30
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April 7, 2025
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Combining root files with weighting
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5
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29
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April 4, 2025
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Memory consumption with string Define() in RDataFrame (PyROOT)
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3
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33
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April 4, 2025
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Calculating cosTheta from TLotentzVector
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1
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30
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March 19, 2025
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Sum of multiple spectra of different root files
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3
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39
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March 3, 2025
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Get TestTree and TrainTree after TMVA is completed
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1
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18
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February 14, 2025
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Bug or feature in TTree::Draw()?
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19
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71
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February 25, 2025
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2D plot from interactive ROOT
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4
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70
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February 10, 2025
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String branch cannot be read from TTree
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4
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29
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January 31, 2025
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Something wrong with CopyTree
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10
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31
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January 24, 2025
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Slow performance when using multithreading with TTaskGroup
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6
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45
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January 20, 2025
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Manual schema evolution: handling change of namespace
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2
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28
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January 1, 2025
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Access and modify TTree(Delphes)
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14
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61
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December 21, 2024
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Adding a new branch such that invariant mass that not exist in DelphesTree
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3
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36
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November 30, 2024
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Merge horizontally TTrees with TBranch as key
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4
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33
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December 5, 2024
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