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2020 ROOT Workshop, June 8-11

Dear ROOT users, developers, and friends: The ROOT team is happy to announce the 2020 ROOT Workshop, where we want to shape the future of ROOT with you. We will discuss ROOT’s latest developments, how you are using R…

6 January 31, 2020
Newbie forum for when you're not sure

If you’re new to ROOT, C++, data analysis etc, and you hesitate with asking your question then please ask it in the Newbie section, where nice people help and we have special rules to be more welcoming. Don’t hesitate,…

3 September 24, 2018
Welcome to the ROOT forum! 2 February 10, 2017
Can't open file TLorentzVector.h 20 February 22, 2020
How to Add a Branch as a Vector to be Used in the Invariant Mass Vector 8 February 22, 2020
3D matrix build 1 February 22, 2020
Enabling threads when using python multiprocessing? 1 February 21, 2020
Unable extract correct data from Hits tree of ROOT file obtained from GATE simulation 4 February 21, 2020
Incorrect Fit based on RooRealVar Range 1 February 21, 2020
TSpline3 interpolation 1 February 21, 2020
Std::map of RNode in C++? 3 February 21, 2020
TTree won't update with new values 8 February 21, 2020
TPythia6 header file issues on 1 February 21, 2020
Glitch in TMVAMultiClass canvas drawing 2 February 21, 2020
Linker Error if compiling a simple graph in VS 10 February 21, 2020
Divide using tprofile 12 February 21, 2020
Converting a ROOT file including TClonesArray into CSV for XGBoost 8 February 21, 2020
Using FitSliceY() for multiple TH2D 10 February 21, 2020
TMVA GUI doesn't show learning curves 9 February 21, 2020
Error persisting array of pointers 5 February 21, 2020
TH1 Draw option interfere with each other 8 February 21, 2020
How to load an shared object that also depends on clang/llvm in cling? 11 February 21, 2020
Can not plot graph? 2 February 21, 2020
Some questions while trying to compile Cling with full C++17 14 February 21, 2020
ROOT v5 on CentOS8.x? 2 February 20, 2020
Reoptimize cluster size with hadd 8 February 19, 2020
Error when streaming Rootfiles via XRootD 11 February 20, 2020
Turning Warnings into Errors 4 February 20, 2020
Fit data is empty despite presence of histogram 3 February 20, 2020
How to teach ROOT to colour in between the lines in graphs? 14 February 20, 2020