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…	2	8414	September 24, 2018
Welcome to the ROOT forum! News	1	4471	February 10, 2017
Problem with VecOps::Map method on RVec of Lorentz Vectors ROOT rdataframe	3	34	September 27, 2021
Likelihood method for estimating electron charge mis-identification rates Roofit and RooStats	2	28	September 27, 2021
An example of functional coding for ROOT tree analysis Evolution Proposals, Apps & Ideas tree , rdataframe	1	37	September 27, 2021
Issue with rdfentry_ ROOT rdataframe , hist , python , root	3	36	September 27, 2021
Issues with Triggers not present in all events in RDataFrame ROOT python , rdataframe , root , tree	3	53	September 27, 2021
Normalization of RooSimultaneous Roofit and RooStats	3	56	September 27, 2021
RDataFrame multithread performance ROOT python , rdataframe	10	97	September 27, 2021
Difference between SUM and RooAddPdf Roofit and RooStats roofit	2	33	September 27, 2021
Is one canvas per thread possible? ROOT	0	13	September 27, 2021
Read a Root file with branches Newbie	5	31	September 27, 2021
ROOT YAML compilation error ROOT	0	11	September 27, 2021
TString.h Comilation errors due to C++ version despite ROOT having been compiled with correct version ROOT cmake	4	37	September 27, 2021
Cout string value from a TTree branch Newbie	6	15	September 27, 2021
Multiply 2D TEfficiency with a TH2D Newbie	0	11	September 27, 2021
Normalisation Script Roofit and RooStats	0	15	September 27, 2021
How to plot d2N/dpT*dy or in general any derivative term as histogram? General Chat	1	33	September 27, 2021
GDML: remove some geometries/volumes via gGeoManager-> ROOT root , graphics	1	22	September 27, 2021
Different normalization between standard RooFit and HistFactory? Roofit and RooStats	1	20	September 27, 2021
How can i create a Tprofile histogram using text data file? ROOT	1	19	September 27, 2021
Root installation error with GLIBC ROOT	1	19	September 26, 2021
Better way to determine most common difference of two columns of an RDataFrame Newbie	1	21	September 26, 2021
Stacking Histos with different Y-axis limits Newbie	3	34	September 26, 2021
"Unknown column" when attempting to Snapshot an RDataFrame with a new, Defined column Newbie	3	56	September 25, 2021
Segmentation violation when making an array-type branch using MyClass::Loop() ROOT tree	7	38	September 25, 2021
Intersection of TGraph and TF1 ROOT	7	101	September 25, 2021
TFitResult. derivative of the fit function from fit result. Any example, tutorial, please Roofit and RooStats	2	28	September 25, 2021
Where is the $SYSROOT/test directory for ROOT installation via conda Newbie root	4	25	September 25, 2021
Problems with running TMVA MLP on different machines TMVA	3	34	September 24, 2021

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…