ROOT Forum

Topic	Replies	Views	Activity
Newbie forum for when you're not sure News If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask 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, jus…	4	19437	February 19, 2025
Welcome to the ROOT forum! News	1	8252	February 10, 2017
CANU – CANvas Unifier for ROOT Evolution Proposals, Apps & Ideas	2	29	March 21, 2026
Problem deleting TList of TCanvases ROOT	3	15	March 20, 2026
Installation issue with MacOS ROOT installation	3	22	March 20, 2026
A memory leak with RDataFrame.AsNumpy() and vector<vector<vector<float>>> ROOT python	2	16	March 20, 2026
Rootcling warnings when compiling ROOT 6.36.08 with C++23 ROOT root	2	19	March 20, 2026
What are the most difficult C++ topics to learn? Newbie	7	128	March 20, 2026
ERROR: GPU use requested but Garfield has not been built with GPU support Garfield++	1	16	March 19, 2026
Bug in h2root General Chat	8	37	March 19, 2026
SumCoefRange() (or equivalent) argument for RooAbsPdf::PlotOn() Roofit and RooStats	1	22	March 18, 2026
Roofit - multiple fit different datasets using different PDFs with some shared parameters - ROOT version issue Roofit and RooStats python	3	32	March 17, 2026
Large changes in branch sizes in later builds of ROOT ROOT root	3	40	March 14, 2026
How to clean/delete properly RooDataSet in PyROOT? Roofit and RooStats	14	40	March 14, 2026
ROOT 6.36.10 is out! News	1	25	March 14, 2026
The VSCode editor cannot find the Garfield++ header file Garfield++	3	25	March 13, 2026
ROOT 6.38.04 is out! News	1	32	March 12, 2026
Missing file error when installing in windows Newbie root	4	37	March 11, 2026
Setting kEntriesReshuffled when using RDatasetSpec ROOT tree , python , rdataframe	7	40	March 11, 2026
Fit Convergence with Status 5 Roofit and RooStats	3	35	March 11, 2026
Error about TMVA TMVA	4	36	March 11, 2026
JSROOT: Tooltip callback click handler for TGraphs ROOT jsroot	5	24	March 10, 2026
PyROOT changed handling of multidimensional branches between ROOT 6.32 and 6.34 ROOT	2	49	March 9, 2026
Interest in taking up project Root in Free Theaded Python for GSOC 2026 Newbie	5	106	March 9, 2026
MultiCore implementation with neBEM Garfield++	3	57	March 9, 2026
How to explore RNTuples in the interpreter ROOT	6	60	March 20, 2026
Suppress Penning Transfer G++ Warning? Garfield++ garfield	4	33	March 19, 2026
Besides one dimensional integrals and derivatives, what other types of integrals and derivatives can Root calculate? ROOT	22	89	March 18, 2026
Simplier way to get full statistics of a RVec branch using RDataFrame? ROOT rdataframe	2	27	March 18, 2026
Filtering branches from a large root file fails in 6.32 Newbie tree , root , rdataframe	4	40	March 3, 2026

Newbie forum for when you're not sure

If you’re new to ROOT, C++, data analysis etc, and you hesitate to ask 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, jus…