Posting code? Read this first!

This is more addressed to the newer people of this forum, but I think it would be a good refresher for some.

USE CODE TAGS!!!

What is so special about these things?
For one, they help show where you code begins and ends. Plus it doesn’t mess with your spacing or indents (a typical aesthetic in programming).

Why do you care so much?
When people are communicating code and there is no indentation and lousy spacing, code is super-hard to read.

How do I use code tags?
The code tag is simple, it is ```. So to begin a code tag, type the following: ``` . Then type all your code or copy and paste, whatever you want. When you are done, use the closing tag which is the same than previously used: ``` .

For example :

```
int main(int argc, char **argv)
{
TApplication *myApp = new TApplication(“myApp”, &argc, argv);
TH1F *h1f = new TH1F(“h1f”,“Test random numbers”, 200, 0, 10);
h1f->SetFillColor(45);
h1f->FillRandom(“sqroot”, 10000);
h1f->Draw();
myApp->Run();
return 0;
}
```

Will display like this:

int main(int argc, char **argv)
{
   TApplication *myApp = new TApplication("myApp", &argc, argv);
   TH1F *h1f = new TH1F("h1f","Test random numbers", 200, 0, 10);
   h1f->SetFillColor(45);
   h1f->FillRandom("sqroot", 10000);
   h1f->Draw();
   myApp->Run();
   return 0;
}

See the difference? :wink:

9 Likes
Histograms in loop
Hadd: corrupted size vs prev_size problem
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TGeoManager units
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*** Break *** segmentation violation (6.23.01) It didn't crash before
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Root installation Ubuntu 18.04
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Installing PyRoot, which version of Python was Root built against?
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TH3, TF3 and GL crashes
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*** Break *** segmentation violation after certain point
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Parametric range definition
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gStyle->SetOptFit(1111) having no effect on fixed variables
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Student's T-Test in ROOT
TCollectionProxyInfo Seg fault
Initializing Muon Vectors: How to
$HOME/.rootrc not working
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*** Break *** segmentation violation when i run for loop using ifstream
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Saving a fit at a root file
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Finding number of Muons
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WebSocket client using civetweb
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No module named ROOT while executing script in windows
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Polymorphism with TClass::New() after dynamic loading of derived class library during runtime
Understanding THStack Output
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Addition of histograms from different files with the same name
Only integer number on x label
Tips for Efficient and Successful Posting
Check for empty RDataFrame
Install root for ubuntu 20
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Adding a Branch of class to TTree
Brazil-flag plot using TGraphAsymmError
Facing error while installing Tauola
Assessing the similarity of 2-Dimensional histograms
Stuck process during fitting
Accessing a dynamically allocated ROOT object after reference lost
Updating a ROOT object in file creates multiple copies
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The fault figure occurs when plotting Double Y axis figure with logarithmic coordinates
Compiling issue on macosx
Mathematical procedure of TH1::Fit
Unknown type name 'TGraphMultiErrors'
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Clear screen in CLING
Control C in gdb ignored
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How to fill a histogram in parallel?
Slow graphical ROOT interface with MacBook Pro Catalina
Problems while exiting root .q with canvas
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Calculation of fit errors
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TClass::GetClass("MyClassName)->New() Fails
How run this macro?
How to generate vector<"heder file">. please help me out
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TH1::Print to show bin errors
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The difference between htemp got by TTree::Draw() and TH1F object
Convert a .dat file to a root file
Help with reading a TTree
TTimeStamp and TBranchElement status
Three x-axes in a TGraph
TEve Beginner Question
The difference between Draw() and DrawClone()?
Previous definition is here
Is there a limit on the size of a char[] "string" branch?
How can i draw scatter plot?
Add legend in roofit
Problem with pyroot on macOS 10.15.6 and Python 2.7.16
Reading histograms from TFile gets slower and slower
The usage of vector type in ROOT
AXIS EQUAL Command
Math/Interpolator.h not found
Cubic polynomial fit 4 points has uncertainties
Different Chi2/ndf results
Integral Error in Signal
TRatioPlot in a Canvas.Divide() environment
Sort a tree using "time" variable
Problem after installing root in windows 10?
Isodraw 7.1 issues
RDataFrame Define using my own class defined in c++ get error
Minor issue with new ROOT 6.28/04
What is the correct use of "TBrowser *"?
Read from TTree
6.21 install directory changed
Segmentation violating from GetEntry
Data Corruption when Cutting a TTree
Unable to run a C++ ROOTbook
SetDecimals() in TGaxis not working
Thank you for fixing PyROOT compatibility!
Drawing canvas distorts legend parameters
ROOT::Fit vs RooFit
Compilation failed: V6.19/01(github master) with VS2019
Using data files in root
Multiple TGraph2D - Issue when using SetPoint
Error while loading shared libraries - libCore.so
Error: TFile.h: No such file or directory
OSX Mojave + ROOT v6-20-06 + Python 3
Root 6.22 cmsenv python
ROOT master segfaults inside ubuntu18 docker container
Convert TString to string_view
RDF filter the content of branches
Remove stats box from fitted TGraph
Logistic function fit
Fill histogram by file
Setting a gate on a cube
Invalid pointer to histograms created via TTree::Draw
How to install root without TMVA packages
Sometimes the axis range can not be defined by users?
Read integer from txt file of 1D containg dat
TPython::Exec() crashes on root imports
Select on char when using TTree Draw() function
Integral from data file
Any way to define a var name CONTROL in root script?
std::vector<ROOT::RDF::RResultPtr<TH1D>> th1v; slow writing many histograms
No matching constructor for initialization of 'TTreeReaderValue<Int_t>'
Rdata frame, problems returning a RDataFrame from a function
Creating root file
Is GroupBy operation natively implemented in RDataFrame?
a->Add(b), can't be initialized
How to suppress _all_ error/warning output
RDataFrame catching undeclared identifier error
Root on /cvmfs/
ROOT Compilation failed with Mac OS Catalina
GUI interfaces of ROOT with high resolution display (HiDPI)
LaTeX in PDF vs PNG
Add 2D plot in a tree branch
Compiling ROOT 6.18.04 with GCC 9.2.0 on lxplus
Advanced TFormula and TF1 usage
How to install Pyroofit?
What file type to save TFitResultPtr
Changing graph titles through a loop
Help with fitting
Converting file to ascii
Include Root header to Geant4 error: Undefined symbols for architecture x86_64: "TVersionCheck::TVersionCheck(int)
Root catalina bug report
Copy Branches to a Tree
Error in <TInterpreter::AutoParse>: Error parsing payload code for class
Csv to TTree
tree->Print() does not produce any output
Setting ROOT for a dummie
Print Branch with array data
Problems after moving to Catalina
Compilation fails under Catalina MAC OS X
Plot with extrapolation and interpolation
Delete or uninstall ROOT
Problem with this code for plotting interference pattern
RDataFrame::Snapshot and TDirectory
Filling TTree in object loop with RDataFrame?
Color part of histogram
TList::Add(TObject *) and TList::AddLast(TObject *)
Changing the size of TCanvas on the go (Run Time)
TF1 vs TFormula parsing of "expo(0)"
Branch renaming failure (?)
Enum for TAttLine:SetLineStyle(Style_t)
OUtput file error
https://youtu.be/s9PTrWOnDy8
Error creating output file
How to copy a branch into another root file
Integrate histogram
Making a pointer to histogram in subfolder to make fits
Problem in installing root while doing cmake
Interval of intersection doesn't work
Histogram styles with DrawNormalized
Ratio plot for multiple graphs
Saving Histograms from tree based Root file into a new root file
Issues with RDataFrame if name and leaflist of a TBranch are different
Order of Print() statement output in distributed execution
H2root conversion failed with error
ROOT TFIle.Open in threaded Python3 program
Using ACLiC to compile a macaro
*Break* Segmentation Violation Error
Error when trying to execute main()
Why is an "error: redefinition of [variable]" occurring every time I run code more than once?
Event display Editor
TPySelector.h is missing?
TTree Alias as the start of symbol
Read histogram from root file and do it a canvas
Multiple TGraph in a single TCanvas
Infinity Chi Squared Value
Libtinfo.so.5 on ROOT CERN
Error when running python 2.7 script on lxplus7
User defined class
Ratio plot problem
Extract preselection TCut used during training ROOT TMVA
Compile ROOT projects with Visual Studio
Error in <DrawPolyLineAux> when drawing TCutG in editor
Problem with error bars and logarithmic axis in variable bin histos
Passing symbol from interpreter to library, workaround?
Get maximum of a function
How to fit with non-function
Using fftw3.h in root
Reset to 0 top "N" bits in a TH1x
Question about time stamp
Reading order of Documents for learning root
Fill the histogram with mean=1 and sigma=2
Reset ROOTDEBUG
Shade area for TH1
Error in <TFile::WriteBuffer>: error writing all requested bytes to file
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3, from ROOT 6.20.00
Gaussian elimination on a TMatrix
Changing default directory for accessing macros
How to plot Graph from text file
Get TFitResult for each slice from TH2::FitSlicesY()
Add TH2 with your settings and options for Add()
How to draw graph after dividing two set of points?
Installing ROOT from the source
Legend font and graph size
How to get the pointer of the default canvas in a TBrowser object
Error in TCutg :: Proof Selector
Integrate ROOT into my project with CMake
Birth of nonexistent events in THStack
Issues building with v6.20.04 with GCC 10.1.1
Compare two TLorentzVectors for equality with operator==
Automating TBranch setting and filling with std::variant
Head scratching issues with RDataFrame
Persisting alias of a ttree
3TH2F in a 3D graph
Histogram clips at the top
TChain: Adding files by reading filenames in a text file
Draw vertical error bars of TGraphErrors
Tab completion in pyROOT in an IDE environment
Code Crashing with RVecs
SVector addition operator?
Problems configuring ROOT (Latest) for centos7 from cvmfs
Problem with histograms after saving to file
Attempt to add histograms with different axis limits
How to change Branch Names in ROOT
Rootmv with large ntuple from DataFrame Snapshot fails to move
ROOT not launching
Applications that inherit from TRint and SIGINT
How to fillcolor at selected Bins of TH1D class object?
Draw Histogram from .txt file. I tried with the already available answers, but didn't work for me
Write data on a txt file
Convertin TString to string and vice versa
Update/Reset TDatabasePDG
Where is my thisroot.sh?
Linking ROOT libs with cmake in Windows
Making a Cut when Projecting a TNtuple?
ROOT macros compilation
Two datasets in one canvas
Sum of 2 different cuts
Reverse Axis for TGraph and Fit
RDataFrame Snapshot columnList
Reading alias of branches in a loop?
Using Cern Root library with Emscripten
Fatal error when starting up ROOT for the first time
How to Count Events within an Odd-Shaped Region?
Ploting two histograms on same axis
A problem about opening a file
Hadd 100 GB TTree
Variable reference from PyROOT
Root with xcode
Analyse chain root 6.18.00
Making weighted histograms with continuous lines
Tcut when I import a TH1F from a file
Not Getting my second points in TGraph
Getting String Value From Branch
List of TH1F is not returned from the function
Plot histogram with logarithmic scale
Key of TTree appears mutliple times in TFile
TGaxis label incorrect with TF1
Double Maxwellian Fit
Installing root cmake
Root installing incorrectly?
Convertying pyroot TFile in memory to c++ TFile
Scale the Xaxis
Gaussian fitting of mutiple peaks in the case of unknown number of peaks in histogram generated from .tex file (for example: test.tex). What are the change required in following code (this code is for 5 peaks)?
Fitting two peaks
Add entry to legend
Integration in ROOT
TH1->FillRandom(...) doesn't work with linear function
TGrapherror, can't get error bar
Print out dir structure inside a root file in a tree-form
Problems while exiting root .q with canvas (3)
Warning while rebinning TProfile histograms
Cannot run program more than once during a root session
How to modify a TLeaf value and reliably write it to disk
How to extract data from root file?
TTree GetEntry memory problem
Plotting two histograms from two different files/directories in one canvas
Plot graph but an excess graph appear
How can i make a new leaf
SetFillColorAlpha not printed on eps or ps
Build fails for ROOT 6.24.00 on MAC Big Sur with M1 Chip
Upper limits plots appear problematic
Failed when using Doxygen to transform Root source code to .chm file
Get bin number corresponding to value
Can somebody help me figure out what the error is? I am using emacs as Text editor. I am using root version v6.22.06
Build root like exactly like the setup in lxplus
Fitting a TProfile with a TF1 of type ax^b
Using GSLMultiRootFinder
Reviving: Access RDataFrame column in function without passing argument
Difference between fit panel and programmatically fit
Make a clone of a TChain in a TTree and filling it, in case the TChain is very big : crash
Odd RDataFrame behavior?
*** Break *** segmentation violation , *** Break *** bus error
Reading a vector of type vector<float,ROOT::Detail::VecOps::RAdoptAllocator<float> >
*** Break *** segmentation violation , *** Break *** bus error
Check a JSON in RDF
How to uninstall Root completely, fresh install of Root 5.34.26 on Windows 10
Include ROOT 6.22 in Visual Studio 2019
Root file cant open with TBrowser without any error message
Delete TGraph object with underscore in its name?
Error to include root header files in C++
Cut a TTree to a new TTree
ROOT Compilation failed with Mac OS Big Sur version 11.2.2 on Mac arm64
mcEventWeight cut
Is there a way to grab the title of a TH1F histogram and print it to screen?
Install ROOT with specific python version on docker container
ROOT installation Windows problems
Projection on defined histogram fixes binning for subsequent projections
Hadd no dictionary for class is available
Using pyroot with PyCharm on Windows 11
TBrowser seems slow for large folder hierarchies
Error: Building module 'Net' implicitly
Pyroot & jupyter
CMAKE fail with a "missing vdt" message
Cannot compile ROOT v6.22.08 with Debug symbols and all options
Store Histograms in Map as Vectors and Store as ROOT-File
Train, test, validation splitting of a root file
Plotting projections on different canvases
Add enum parsing in TTreeFormula
ROOT to hepmc file conversion
Clone tree in a file and add other branches - Entries duplicate!
How can i solve this problems? im a beginner of root plz help me...!
Unable to draw interactive plots using jsroot magic command in jupyter
Error while loading shared libraries: libCore.so.6.20 in HTcondor
Issues compiling ROOT for c++ & Visual Studio
TProfile Error of RMS for each bin
Why can't I access this histogram from the branch?
One out of four TCanvas missing
Root 6 interraction
Root histo
MD5 sum on a ROOT file; do ROOT files have timestamps?
Bad design regarding the storage of statistics
Compiling ROOT 6.24 with external llvm but built-in clang
Angle wrap in TTree.Draw
How can I open a root file in a Mac application
Looping over th2 to get the error in the histogram
Elegant ways to get a TH2D from a vector?
TRatioPlot (a few questions)
ASImage2gif
SQLite parallel insert
Keyboard Layout
TH1 GetRMS and GetRMSError
ROOT appears to be performing automatic rebinning of my TH2D by default against my will... extremely undesirable behavior
Saving output as .txt file
Compiling and Running ROOT on iOS
Issues with starting root
Plotting a 2d function
Fitting two curves on same canvas
Rebinning all the histograms in root file to new root file
Profile Plot Cutting out events in leaf arrays
Multithreading safety when building custom object in RDF Define()
Process stuck when using XROOTD + Streaming from the grid + RDataFrame
Canonical Way to group-by in RDataFrame
ROOT dependencies can not install in CentOS8
Slot DoDraw() does not exist compiled guide
GUI problems (XMing)?
TFolder::Clear()
ROOT fails recovering a file
Do spaces matter in TBranch leaflist
Reading the branches of a class
Reading a JSON file into ROOT C++
Why do constructors work when TString is passed instead of const char *?
Minuit2 Changing only 1 out of four parameters in ChiSquared minimization
TEve track projection
ROOT v6.24.00 from source
Root I/O reading a variable length array branch using streamer
HTML help links within ROOT's GUI are outdated
Hi, I'm having some problems with root, how do I make root--web=off? Could you help me with that?
Problem with libRIO and import ROOT
Import ROOT, .Draw not displaying image on Jupyter Notebook
How to draw the uncertainty of the line shape of fit?
Trigger several times event loops with RDataFrame
Sum for each RVec column, returning an RVec
Read data from a .root file
Root 6.26.10 build failure Mac OSX
6.22.04 build error on macOS
Save a TGraph in a root file
CMake macros/functions
How to send a signal to ROOT from an external Thread?
Snapshot crashing in update mode and multithreading enabled on LXPLUS
Merge 2 branches in 1 new branch
Write TTrees into chunks using RDataframe
Get histograms from two different files and plot on same canvas
How to remove legend from my canvas (supplement: it was a stats box)
How to call Form in python
PyRoot: filling dictionary with histograms
Converting a cube into root format
Help on compile root on new arm MacBook
Errors in an empty histogram
Cutting histogram using TLine
Negative value get from Gaus!
Rotating images using ROOT
THStack histogram
Embed TCanvas in Qt
Segmentation Fault When Reading Ntuple in a macro
Method "AddPoint" for TGraph doesn't work
Trouble reading RVec of vector from branch with TClonesArray of objects with std::vector member
TLegend entry for TMultigraph
Multiple INPUT files
Issue in calling a c++ template function with pyroot
How can I build vertical line on the graphic?
Opening remote xrootd file: TChain works, TFile does not work
Compilation failing because ROOT is searching for files in the source directory, and not in the installation directory
How to build from source on Ubuntu20.04(arm64)
Divide a process in more CPU
Spread Option, "s", in TProfile
HOW to put an array into a one-dimensional histogram?
Root 6.22.06 and matplotlib and Jupyter - what to do?
Configure: error: ROOT could be initialised
Finding TObjects?
Error when filling the self-defined class in root file
How to refer to a leaf by a branch?
Error in Adding same histograms from different root files
Corruption when iterating and copying a tree
Computer hardware
Show units for colour bar
Errors installing ROOT on Ubuntu 20.4 ARM (M1 MacBook Pro)
Error installing ROOT 6.22.06 on MacOS 10.15.7
Creating and Sorting Vectors of Collections
Issue with 2D TEfficiency Statistical Uncertainty
Multi histogram plot
ROOT in pycharm
How update the group of TF1s
How to execute a python file
Error in writing file in a directory
Limit line painting on a graph
Fill all branches of a tree separately (because every branch has to satisfy different conditions)
General Least Squares with correlated data set
How can I change the color of the point in TH2F?
Error propagation with variable binning
Divide the bin having same events
Subtracting minimum of a RooCurve from another RooCurve point by point
Using SetLimits() changes the histogram
Weird problem with TH2F
Building ROOT on Windows 10 + last release of Visual Studio 2019
RDataFrame speed vs TTree loop for histogram creation
Jsroot custom html projection setting
Why the error indicate TTree::TTree not defined?
Overlay two histograms drawn by two . root files on one canvas
Read histograms from multiple ROOT files
Generate random numbers obeying poisson distribution
How to display events from .root files
Root Crashes on windows 10
While(!feof(file))...... not working
How to get event weight for mc sample
Best way to save "long double" variables into a TTree
Geometry extract
How to enable PyROOT in windows 10?
Peak shifting in a histogram
How to save a root Draw to a text file
Add a branch to an existing tree in another .cc file
Roofit libraries not available to compile the macro in macOS 11.1
Jsroot display CAD stl files
Event decay problem using TGenPhaseSpace
Compiling issue with RDataFrame
Add cuts for tree in pyroot
With RDataFrame and python, how to fill an array in to a tree and save the tree
Save a std::map<int,TH1D> to a TFile
Cannot draw when I doesn't using root prompt
Memory leak with RDataFrame in Python II
Boost to COM frame with LorentzBoost
Copying entries from a TTree
How can i draw graph is this code?
Trivial questions about RDataFrame
TChain get entry acceleration
RDataFrame and multiple candidates taggers
How reliable is TFile recovery?
RooHypatia2 GSL errors
TBrowser won't open
Seg fault on `.q` but not when deconstructing TObject
Shift yaxis "bin edge" in TH1
Normalising in TTree
Efficiencies with pyROOT
Accessing TGeoVolume (TGeoBBox) Origin Correctly
Is there any documentation for TTree::Query?
TCanvas::WaitPrimitive crashes in python when TCanvas is closed
Root 6.22.06 install on M1 Mac
Access data from a Tree
How to install root6.22 on win10 platform from source?
How can I change the colour in the x direction only?
FillColor bug in root 6.22
TGraph2D Number Error
No output when plotting data in TGraph through for-loop
Marker size th2f
Read vector<vector<int> > branch
Root history with timestamp
Branches of vectors of vectors
Making a TH2F plot taking data from a TTree and from a TH1F of a Root file
Speed up adding files with TChain
Integration in c++ language
The position of the histogram data window
<TEnvRec::ChangeValue>: duplicate entry <//=foreground color> for level 1; ignored
RDataFrame not making a new .root file
Filtering 2 dataframes at once
Is is possible to install ratcage with root 6.24?
ROOT installation and PyROOT on Windows 10
Issue with template type deduction for nested class in PyROOT
I/o streams problem (windows 7)
Possible REFLEX_GENERATE_DICTIONARY c++ standard mismatch
Getting details of a gaussian fit
Show fitted function works differently (?) than before
Tool to compare TTrees in Root Files
Usage of `include_directories` with `root_generate_dictionary`
Catching TH2::Rebin error in pyRoot
Link ROOT to a library using the ROOT CXX compilation flags?
RDataFrame .Count() and .Report() re-looping over whole DataFrame?
Error in Pyroot tutorial twoscales.py
Illegal Leaf Message When Reading From A Database to Skim
Ovewrite TGedFrame
Use RDataFrame with nested vectors (like vector<vector<float>>) without creating additional dictionaries
Removing the area outside a circle
2 Pad multigraph with text on x-axis
Download error for TBB when building 6.08.06
ROOT 6.25/01 with clang: several warnings for 'REMOVE_THIS_NOW' [-Wunknown-attributes] during root compilation
Issue with plotting uncertainity bands in post-fit plot
Print fit result on TCanvas
TEfficiency Bayesian Posterior PDF
Can't Obtain Fit Result When Using Option "E"
Coincidence matrix
How to keep calculation precision at equations solving using linear algebra of root?
Stacking 1D histograms into a 3D contour plot
TGraphErrors with X-axis of “char” type
Saving Canvas as C File Changes Colors (Seems Irreversible)
TGraphError - how to be plotting errors as a colored band
Getting TTree clusters as used by TTreeProcessorMT
How to solve the problem with hint “Error in <UnknownClass::Solve(TVectorD &>: vector and matrix incompatible”
Trying to update virtual machine to a new version of root
RDataFrame, plotting 2D vector into 1D histogram
How can we plot the TH1 histogram with different bin width?
Odot Tlatex symbol does not look well
Filtering of entries within a particular event in rootdataframe
How to include fit parameters when writing histogram to file
Load different Libraries (VTK Libraries) to the Root
ROOT with R through conda
3D vector seems to be not working with TTree
Creating a contour plot from a .txt file and displaying it with a information bar
Memory issues with vector of pointers to TH1F
How to plot graphs at different stations
Fitting double gausian
Failed instalation of last version root with cmake
Problem with installation latest root with cmake
How can i draw several plot in one canvas?
Qtweb issues
Histogram with "/" in name
TRatio in graph
RDataFrame multithread performance
Plot lorentzian function
Integer arithmetic
Editable TGedFrame
Compilation error 'COMPILERVERSSTR'
Call TMultiGraph in a macro
How to install root with pyroot in apple m1?
RDataFrame and TMVA with KFolding
TTree filtering at PyROOT - RDataFrame
Superimpose histogram
Copy histogram from a root file
TChain Seg violation
Inf/NaN propagated to the pad. Check drawn objects
Using Texec to show a TH1F from a TCanvas pad on another TCanvas
Problem with drawing multigraph
Loading tree from a file
Manipulating hadd to skip some folders
Data rate when reading a file
C++ standards for various versions of ROOT
FFT Plugin not found?
Loop over all hits
Storing high-precision values in a TTree
Correlation between variables
Read a Root file with branches
Add No of histories in histogram
RootDataFrame Histo1D not filled in properly
ROOT 6.28 and Jupyter not Draw-ing [SOLVED]
Obtain TGeoManager from ROOT file
MacOs 11.5: Can't execute root through terminal
Starting a simple Proof-Lite code with Error in <TProofServLite::HandleSocketInput>
Digitize graphs from image
Make a Lorentz vector and extract mass using arrays in the root file
Installing ROOT on Windows 10 OS
Calling C++ from Python
PyROOT & C++: Fill TCanvas.cd(n) with a for loop
How to get the Cumulative Distribution of Data?
Warning in <TTree::ReadStream>: Couldn't read formatted data in "Voltaje(mV)" for branch Voltaje(mV) on line 1
Maximum in the tgraph
"No medium" problem
Question about using jupyter notebook with CMSSW
Difference between branches
Unable to access 'https://github.com/vgvassilev/clad.git/': GnuTLS recv error (-54): Error in the pull function
Creating Multiple Copies of a Composite Shape
Error in executing a macro - Mac OS issue it seems
Build fails on MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk
RDataFrame and Fill method with a custom class
Crash involving TUnixSystem
How to draw optimization of 2D between two variables?
Error: module 'Darwin' does not use additional module map WITH brew & xcode 13.0
Wrong MakeClass?
ImplicitMT Writing issues
Poissonian extended dead time
Build of v6.26/00 failed in compiling CPPConstructor.cxx
Trigonometric
TMap::Copy() does not copy
How to remove or exclude one branch in RDataFrame in python when reading from tuple file?
Compile root with apple M1max
AddLast() {TClonesArray}
Work with complex number in function
Tsystem - no such file or directory
Inconsistencies of number of entries for each branch
Retrieving 2D histogram fitting parameters
How to find root built-in function?
Text on x-axis instead of numbers
gSystem->Load() not works in macro
Vim keybinding for ROOT in interactive mode
Change the order of branches in a root file
How to call Mathematica ( or alternatives) function evaluation for specific pdfs
Use TTreeFormula to select elements of TTreeReaderArray
IntegralError give impossible result
Integrate a user defined function
RDataFrame Cut left out some events
Library for macro cannot be found after first compilation
Error with TGraph::SetTitle
Root Compilation... again
(pyroot) properly releasing memory/ending this script
Can plots be suppressed?
Adding events directly in a existing histogram
Histogram unify
Enabling Multi Threading in My Custom action
TGraph not accepting gStyle->Palette
Unsupported C++ standard: 11
Macos can't cmake
Macos can't cmake
New TBrowser does not open a browser window
Errors of my compiling in macOS!
LifetimeHandler
Python (pip) packaging the software based on ROOT + PyROOT
How to move to the next root file in TChain?
Filling the histogram with Value/Sum
Multigraph
Unsmooth spline
Installing Root on POP-OS 22.04
Executing a macro from my external hard drive
Relative frequency hystogram
Draw multiple fitted histograms in single canvas
In the Divided TCanvas, How can I change the stats respectively, for example, remove the Entries?
Question on RDataFrame Vary functionality (bootsrapping samples and weights)
Issues with combining ROOT files in different order
Type object 'ROOT' has no attribute 'TFile'
Read TH1D from .root file via pyROOT
Is it possible compute quantities between entries in RDF?
Access members of a ROOT file
Working with TString
Question about RooWorkspace Print
Using ROOT libraries in CONDOR batch system
Bad_alloc issue in TH1 using RDataFrame
GetBinContent gives a nonzero value even though the bin index is out of range
Problems with Background()
Drawing two histograms after normalising from different rootfiles
How to read the output file properly? specifically FitResults
Can a class revert from using a custom streamer?
Build error: unrecognized command line option
How to ask a macro to wait until a cut is saved?
Unknown Type Error
How to remove or hide the blue line in the bar?
Seg Fault when using TObject::Get()
Continuing the discussion from An unwanted horizontal line is drawn at y=0
About Linking CXX executable error,undefined reference to
Code.h etc. have been moved in Python 3.11
Import a stp or GDML into root as a TGeoVolume
Histograms as function parameter and returning their ratio plots
Fitting is not working on the triangular peak plot
Scaling of histogram sets BinError to 0
TF1::IntegralError fails
Plot not drawing correctly
Remove TLatex from TGraph
Error Creating Ratio Plot
Segmentation violation when fitting histogram with spline
Creation of cells and plot energy deposition in 3D histogram
Saving brach of vector failed in VS2022
Use TTree Fill to copy some events but the new tree uses more memory
Variable bin width histogram
How to generate correlated random number?
Add branches to a TTree
Histogram with not adjacent custom bins
Avoid <message repeated n times> when using TError
Is TLorentzVector got some limitation
TLatex not drawing in pyRoot
TFile Open from Gitlab
THStack not working
Minimization tool
How to draw a 3D polygon
Compile ROOT problems in macOS 13.0
Void error
Loop over std::vector<TLorentzVector> when using RDataFrame in PyROOT
TImage: no variables names in the arguments of the member functions in the documentation
Use interpolation as a function in TF1 for fitting
How to draw multiple surfaces with intersections?
Mouse position shifts in geometry display
Tree ROOT file
How to easily use "easylogging++.h" in a root script, xxx.C
Issue with root on Mac Sequoia (still?)
Integral with a defined bin range
Problem with RDataFrame "Run: event loop was interrupted"
Error in <TVirtualFFT::FFT>: handler not found
Gaussian Smearing of 1cm
Blank canvas when using THStack and multiple input files
pyROOT on Windows11: module libcppyy* is missing (No module named 'libcppyy3_11')
pyROOT legend not showing up
Creating TEventList by comparing values from 2 root files
Cannot draw error bar with SetMarkerStyle when the errors are small in TGraphErrors
TVector2: output phi range from -pi to pi?
AsNumpy error from dataframe with array columns
Compiling root6 with visual studio (again!)
TTreader Error
ROOT and jupyter notebook on visual studio code
TGraphErrors with root 6.22.06
Pop-up of the canvas
Pan zoomed axis?
Search for two separate values in column
TMVA pointing at wrong cuda when rebuilding root
I have successfully run my code and generated the root file, but why do I get the following error when I use the data->Print() command?
K-S probability is coming always 1 in BDT training and testing?
Store csv data in array
Compilation problem, error _ZN4Vc_16Common11RandomStateE
Root installation for cluster
What is the function of the first argument of class TGLayoutHints constructor?
Gaussian Smearing of 1cm in x and Y
Reading of HepMC file and Plotting of x y z distribution
Isolating bins by limiting ranges on axes in THnSparse
I cannot store string in tree
Write and Naming a TBox to a ROOT File
Options to use the {fmt} library in ROOT
SetLogx() gives me empty histogram
Parallelization inside a ROOT macro
JupyROOT on WSL
Contour lines and colz option in TH2D
Violation with command gRoot->ProcessLine(Form(".! ls > tmpfiles.txt"))
Root branch v6-30-00-patches for C++20 Not Quite Working
How Set axis titles
Apply ROOT::Math::Minimizer using RDataFrame
CMake not found CASTOR
Wsl2 menu display issue
Save complicated TF1
CMake failed w/ -DLLVM_ENABLE_SPHINX=ON
How to add a branch of user defined class
RDataframe columns from user-function that uses another column
Can't read a tree branch with leaves of varied length array
Don't want to work on terminal
PYTHIA object not working in ROOT macro
Error compiling with Root Libraries (root-config)
TGeoHype Reference Documentation
TTree::Draw of TRef
How to append root to your PATH environment
Reading Json file with root
Reading branches of TTree from root file
Pyroot fix
Python language server support
How to redefine canvas type (web/root)?
Almalinux 9 dependencies
Problems compiling ROOT
Getting value from the leaf
Filling vector branches in python in 2024
Creating a normal distribution fit
String format of datatypes in branchDescriptor
How to draw histogram from a leaf variable
Pbm with histo values reading
Shadow warnings on MacOS (CLang) were never fixed?
How can I separate out the event ID's in a TChain that have the same value
How to use libCling.so in other c++ project
Incomprehensible errors when running code from opendata tutorial for dimuon analysis
Root not working on mac
Cannot compile root on mac
Gaussian with random numbers
Root-docker TBrowser how to make it accessible from host browser
TTree::Scan output change in 6.34.04 (wrt 6.32.xx)
ROOT::Fitter fails on linear fitting
No libPyRoot when compiling from source?
RDataFrame, lambda capture by value, and "static" behavior
Difference between the vertex position and position in phase-space file
Drawing multiple TGraph from two txt file
Problem with entering a character string into a ROOT Tree
Running fast-jet and fast-jet contrib in RDataFrame
Keep getting a segmentation violation when trying a TH2d to file
Multigraph - empty plot
Genreflex migration of Hep3Vector
Fit not matching the given data
Root interpolator embedded in a TF1
File Output_t0.root has an incorrect header length (206)
Setting up ROOT environment
Send TH1,TH2 objects from cpp macro to python for conversion to np arrays
Makefile:143: *** Error: main91 requires ROOT. Stop
Want to create a 2D histogram from two different branches in TTree
Fitting two kind of function
How can I perform multiple Gaussian fit on a "rebinned histogram"?
I got a problem doing histogram tutorials
Fitting Signal + Background for Th1F
Access particle charge using PDG-ID scikit-hep particle package in RDataFrame
libTBB build failure (and solution)
RDataFrame: upload external variables to the Define
Creating function libraries
Function convolution with parameters
TTree and Branch
I had a problem when i integrate histogram
Data from 2011 for dimuon from J/psi decay in photonuclear PbPb collision
Streaming of template
Array filtering in RDataFrame returning indices
I can’t fit with TF2
X-maximum and x-minimum values TH1F
Number of the types/classes in the definition of templated class
Problem with dividing TCanvas for multiple RDataFrame Histograms in pyROOT
Set parameters or fix parameters in fitting function
Normalize histogram and triangle histogram
How can i access $ROOTSYS directory?
Read Valgrind log
Undefined reference when using Raspbian compile root based program
Histogram empty
Makefile compilation error
Get total energy from an histogram
Compilation error due to 'font not found in path'
Drell-Yan simulation
How to add optional libraries by Homebrew
How to select some data from rows of one column and push them in one vector?
Garfield++ / Root Errors - fatal error: TCanvas.h: No such file or directory
How to perfectly fit exp. data with 5 gaussians
Long friendship list delays compiled macro execution
Linking error
ROOT 6.24/06 can not work on macOS Monterey
Wrapping exec object in pyroot
Bug in invocation of namespace in Root
Why Canvas don't create window
Adding contour lines into my contour plot
TLimit at 90% CL
TGraphErrors Fit, how to determine if a fit is good?
Plot variable distribution with histogram under unknown range of this variable
Gaussian fitting of multiple peaks using TSpectrum
Drawing a histogram from a root file in pyroot
Asimmetric tgraph error
Normalized a histogram with line but without error bar
Cross compile for arm machine could not find X11
Failed interface between python and root by brew on Sonoma 14.6
Fitting one function to multiple ranges simultaneously
RDataFrame Python string formatting
Branch selection
Installing root for using pyroot in Anaconda package
How to make a simple error on histogram?
Weighted histogram using RDataFrame
Trouble reading .root files
ROOT 6.18 not searching under /usr/local/include for header
Segfault when defining new column with gInterpreter
TMarker in TH2D
Can we write a .root file with a .c code
Position of scientific term of TAxis
Problem building ROOT from source on mac os 10.15 (Catalina)
Making tree branches with vector<vector<int> >
Error Building "makefile" : cant find some library
Error Propagation in TF1 class
Maximum and minimum colour using the "COL" option in TH1::Draw
Root error unresolved while linking
TCanvas putting histogram row wise
Root 6.24.00 Compilation error with Mac OS Big Sur 11.2.2
Plots using jsROOT not being displayed / remain blank
Crash when plotting four histograms
Problem with Time Display
ROOT (master) compilation fails for libROOTNTuple.so in ubuntu 20.04
How to display the entries and details of a particular histogram when multiple histograms are plotted on a single plot
Arrays of Double32_t not recognized as arrays?
TTree basket size inflating and exhausting memory
Question about DrawNetwork in TMLPAnalyzer
[RDataFrame] How to use sample meta-information in DefinePerSample?
How to set label size globally in rootlogon.C?
Fit Panel -- problems fitting with a user function
ROOT doesn't draw TCanvas
THttpServer automatic page reload
Histograms of dose profile and surface dose distribution
Running root in each directory in windows
Install ROOT5.34.34
Fail to include "code.h" again v6.26/{08,10} again
When does the TObject pointed to by TFile::Get(name) go out of scope?
Some 'how-to' questions on Histograms
Scope issue with Cling?
Set precision for the "TEXT" option of TH1::Draw
Error 'ROOT::Math::Util' has not been declared raised during the building of the Bayesian Analysis Toolkit
Question on vector<vector<int>> using RDataFrame
Module 'std.codecvt' is incompatible with feature 'header_existence'
TF1::GetParLimits after FixParameter and ReleaseParameter
Problem with root on macos: error: module 'Darwin' uses additional module map
TGLViewer SavePicture not exporting .eps and .pdf properly
TMath::IsInside() always returns false
Accessing TNonSplitBrowsable
Error when instaling to about 57%
Error in <TTreeFormula::Compile>: Invalid Syntax "&&"
Plotting individual points on a TGraph?
How to access histogram of TF1 drawn with DrawCopy()
How do I import root classes when using cmake?
Problem with main() and no output root file
Numbers as histogram names in CINT
Install Root on a chromebook?
TNetXNGFile::Open fails with double slash (//) in path
Marking an region with different background color in TGraph
Division of two histograms
Warning: invalid memory pointer passed to a callee in c++ code
Problem opening Displays using root on Macbook Air
Understanding installation of Root
TMultiGraph axis ranges not being used
APPLE updated MacOS to 12.0 SDK
Gaus generator for histograms
Error on opening root
Merge branches of same tree of two root files
Wait function in root
Fitting at end of bin
String on TGraph axis
Root, OpenGL, X2Go
Environment variable not working
Migrate from PROOF to RDataFrame + Spark
Normalising a histogram directly
Selecting events from multiple time ranges
I am getting error when I am doing remainder opearation
Using brew root with pythia8
Some doubts on Contour Plots
How to update an existing Tree?
SQLite tutorials
Merging ROOT files with hadd
Filling histogram with errors
Roofit: Puzzled by filling the graph in Windows Subsystem for Linux
Draw command in histogram
How do I change the title of my plot?
Reversing X-Axis
Fit of an array
Parameter space values from Minuit
Reading TRefArray with RDataFrame in PyROOT
TGraphErrors with root 6.18
After upgrade to Ventura 13.0, my ROOT have been not working. Please help me
Creating an array of TVectorD objects?
Creating and filling root tree in separate functions
Automatic pointer for a TBranch
Install ROOT 6.24.00 on MacBook Pro mid 2014
Draw X-Axis with specific values
Creating a better contour plot
What does TPaveText->SetX1NDC do and how to solve my related problem?
Root don't want to work with GATE geant4 compilation
Como instalar Root para ubuntu 14.04.3?
PYROOT: Fill histogram with numpy array
Increment by variable names in SetBranchAddress
Unable to display the histogram entries and standard deviation
Z-axis labelling in TGraph2D
Error when simulating optical processes using a Geant4 based software
How to use the objects in the library that is loaded with gSystem with g++ compiler
Joining TProfile end to end
Installing root with Conda
Draw Files on Same Canvas
How can I loop over a number of directories
Make each tree of a file friends with each other
Find the bin of 2D histogram for each event
TH2::SetShowProjectionX() draw style
Chi2 and ndf
No matching member function for call to 'GetObject' on TFile object
Build of v6.26/02 failed again in compiling CPPConstructor.cxx
Landau definition in ROOT
Read a SQLite db file and convert it to TTree
Segmentation fault executing SetPoint in script
Can Root geometry package be used in Geant4?
Legend: fit curve entry and transparency
Set preprocessor #define values before compilation
Set event status bar visible by default
Start up tutorial for using CERN data for simulation
Byte count too large error while copying histogram
Question: How to set defaut options on all root sessions
Drawing shapes on a TGraph?
How to use TEventList correctly
How to uninstall root cleanly for the snap version
Root without MathMore
Docker Image for v5.34/24
Centrality Class
Seg. fault for loading the library with dev3
Typing the error: Assertion failed. "Isn't a single decl"
How to change -std=c++11 to -std=c++11 in root under lxplus.cern.ch
Bug in TCanvas::SaveAs C-macro
TTrees not hadding properly
Weird behavior when using option "same" when plotting branches
Error in TDataFrame
Csv data plotting
Specify minimum/maximum colour for colour palette
Making Branches with class objects
Optimal Unbinned Maximum Likelihood Fit- Python
Is it possible to normalize or divide one axis of THnSparse by another TH1D histogram when we do THnSparse::Projection in 2D?
User defined class
Plotting multiple palettes on the same TCanvas
Weird ROOT bug?
Macro for multiple plots in one canvas
ROOT v5 on CentOS8.x?
Dear experts, Can you suggest me the PDF use for fit of the #DeltaE distribution?
PyROOT cannot handle SFINAE member functions?
Issues with void function inside macro
Unable extract correct data from Hits tree of ROOT file obtained from GATE simulation
ROOT in JupyterLab
Getting List of histogram name from Flat Ntuple or simply a root file
Multiple TGraph2D with option "PCOL" share the same palette
ROOT 5 on Mac OS 10.15?
Not able to fit data points
Error while loading shared libraries: libCore.so: cannot open shared object file: No such file or directory
CMAKE python version mismatch?
Write .txt file by TFile
Multigraph problems
Issues Setting Up geant4_vmc for Monte Carlo Simulations
How to initialize RVec
Using the new Minimizer class on ROOT 5
*** Break *** segmentation violation while closing .root file
Change axis label density inTH1
How can i get rid of CMake Error at home/usr/
Can't use set function for TVector2
Accesing members/methods descriptions defined in the header comments
Dumping plot in py
Printing in terminal crashes root
Axis range problem in TGraph
Can not plot graph?
TArrow size and position
Std::bitset streamer: endianness issue?
Easily aggregrate 2 Rdataframes with same n(entries) in a sorted way
ROOT not connecting to python ("module libcppyy could not be found")
Segmentation violation on Big Sur 11.2.3
ROOT Data Frame Tutorial; Combinations
Combining two built-in functions for fitting
"Error in <TNetXNGFile::Open>: [FATAL] Invalid address" message while accessing files
Logos in plots with vector output as a style
Getting error like 'generate the dictionary for this collection (map<string,bool>)'
ACLiC compiling scripts and give name
Warning in <FlushXOROps>: No CrosshairWindow found to draw into
Using TCuts in if conditions
PYTHIA 8 for ROOT
Uniform distribution
The type of TTree parameter
Install root 6.22 on ubuntu 20.04
Delete dynamically allocated TH1*'s
Histogram doesn't shows the regular line
ROOT on Windows 11 WSL2 / WSLg
AnaConda Root coud not install
Root is not working and stop
Generic polycone unsupported by GDML parser
Root is not working and stop
Regarding programming
Merging Datasets using RDataFrame
ROOT compilation fails at target Imt (by making function call that is not there in libtbb)
ADC to energy scale conversion, re scale x axis TH1F
Normalization of TF1 (function) for log likelihood unbinned fit method
How to draw 2D scattered plot with its projections in same canvas like the attached figure?
TChain in Root 6.12.06 - Break Segmentation
OriginPro and root
Draw both histogram line and marker
Root on windows (Visual studio 2010)
Root latest release upgrade
Import ROOT
Root update error
Support for multidimensional arrays with TTreeReaderArray
Change marker style for some point or other solutions
TGFileDialog check if cancel pressed
Autocompletion with VS Code
Unzip a single basket to see if it is corrupted
Can't change axis label for TH1 frame
SetFillColorAlpha doesn't work
Missing ROOT::Math::legendre in v6.30/06?
Difference between Root dict and LCG reflex dict
TH2Poly SetLineColor etc. has no effect
Installing python bindings on an already existing root setup
Radware matrix to ROOT
Remove bins in chi2test calculation
Plotting array size
Error shows on running ROOT after installing in windows 10
mergeSelective not working
Error installing root on Linux device
Installing root in Windows 10
How to overlay one histogram on another?
How to import "times signal" "dot or bigdot or bullet" when plotting pictures using TH1D class?
No module found, import ROOT error
Removing entry from include path
How to get the population standard deviation?
Distribution shape change for every try
How to change range Y-axis
Question of C++
MakeCsvDataFrame to convert from .csv to root file
Using a macro multiple times
Problem running root after update to Mac Catalina
Create a new branch with input tree branches
Shift of Histogram along y-axis
Root.exe does not exist!
Add include path and library in PROOF
Automatic exit of root in windows
How to do a significance scan (signal-background) from a histogram in a root file
How to modify the default value of arguments in context menu
Unable to compile root programs outside root environment
How to write a shell script to run a root macro created by MakeClass()?
Fill RVecs with Branch Values (as Array)
I wanna draw 2 fitting graph. But it shows only one graph
Writing TTree w/custom container class - variable length arrays
Split large root tree file to small root tree files
Error title TH2F
Switching code from pyroot to C++
Start Legend neatly from top
My fiiting function for convolution crashes
Dictionary usage with Python 3
Square root of histogram
Histo changes bin and entries when switching to log scale
Error to link libraries with a CMakeLists.txt
Other file types for ROOT file
Draw histogram of a class member in TBrowser
Problem compiling with root
Rescale x axis of histogram
Building Root 22
Windows 10 WSL VS Code : No such file or directory error
Can't fit a histogram loaded from file
XRD GSI auth fails
Is it possibile to install new ROOT version in Monterey 12.3.1?
RDataFrame with weight
Image does not show in pop up canvas
How do I produce multiple canvas from a macro?
ROOT stopped working, suddenly
How to save my modified TH1D into my existing *.root files with TBrowser?
Setting Histo1D in pyROOT
TTree::Draw of TRef (2)
Compiling from source: First interactive command hangs
Error when running any Event Display tutorial/program on OSX
PCM file not found
JSRootCore.js Error in Jupyter
Facing problems while installing root 6.10/04
What is the best way to plot an oscilloscope trace in ROOT?
Bug in cmath pow? (typecasting, symbol unresolved)
RootV7 RNtuple examples
Entry range in TNtupleD
ROOT library (so)versions
Do ratio between two TEfficiencies (or TGraphAsymmErrors)
Problem with drawing lines using TMultiGraph with gPad -> SetLogy()
Clusters of the processed RNTuple data set
TSpline5 interpolation
R__unzip_header: error
Problem with fopen filepath nesting
How can i make a fitting better?
CMake: ROOT component PyROOT is not found
How do I copy a leaf from many ROOT files into one?
Control length of line in legend
Error: cannot initialize a variable of type 'TH2D *' with an rvalue of type 'TH1 *'
Problem with RDataFrame::Fill in python
How to fix the Tcanvas in TMultiGraph for several files
Exponential plot
How to write data from a branch
Installation problems root
A bug on TSQLServer at Mac os platfrom
Error read by RDF
RDataframe, it is possible to pass non-column argument to lambda function? example: c++ container
Anchor TGaxis in a fixed position and zoom
Process data with saved cuts as cut.C
Increase smoothness of drawn curves
TEve Buttons not working for next events
Installing 6.20.04 fails on Ubuntu 20.04
Pythia-root interface
Hadd failure on files produced by same executable
TLatex: subscript far below with integral
Different outputs with RooNLLVar+minimizer vs createNLL+minimzer vs fitTo for extended maximum likelihood fit
Tree print and show in python
Macro Runs Fine in Root 5, Seg Fault in Root 6
Copying variables from Delphes ROOT files to new ROOT files
Undeclared Identifier when running macros
Histogram containing dots in name
TH2Poly::Draw("text") omitting negative numbers
Sample splitting using RDataFrame not working for the trees which contains vector branches
Filling objects in pyROOT
Incorrect Histogram Plot
Fitting a Linear Function
Binning w/o entering?
Exponent label in a graph
Setting y axis limit in a function plot
Convert from .C macro to png
Fisher distribution diverging where it shouldn't
New column RooDataSet
Multithreaded analysis doesn't seem to recognize null initialization of TH1D objects
Combining any user defined function with a predefined function for fitting
Get data from tree's branch to txt
Problem in Draw()ing a histogram w/ variable bin size in logarithmic scale
Rerunning a macro error and recommendation for a bug-free ROOT version
Using cout in root
Compiling issue
Spectrum does not find and show right peaks
TLegend ugly in subfigures
How do I read from a TNtuple?
Vtd header files are not accessible
Accessing the value of pi in ROOT
Setting a constant number of decimal points on plot axis
How do I actually install ROOT?
Cern root install error for ubuntu
Using Lambda function with variable number of columns
Default Location of accessing macros
Root Files Portable?
Use of THnSparse
Using examples given in documentations as a newbie
Shutdown of root window on undeclared identifier
Declaring libraries in root
Can't find $ROOTSYS directory
Plot variances in each bin
Saving ROOT.Numba.Declare callables in Python?
How to select events randomly?
Comma separated CSV file
How to use TSpectrum to locate peaks
Create and read a ROOT file
Creating data files for practice
How to install root on mac os x 10.15?
Building ROOT on windows 10
Failure loading library libMathMore.so for ROOT::Math::GSLIntegrator
Trouble compiling with Python 2.7 on Fedora 31
Precision of axis labels
Not show labels
3.6f in an histogram example
TAxis::SetLabelSize documentation
Problems while exiting root .q with canvas (2)
Installing Root on Mac Problems not Configuring
Histogram Functors for RDataFrame
Equalise font sizes of histograms drawn on different pads
Equalise axis title offset
Extracting a fit form a class function
Compile error using RDataFrame: fatal error: 'vdt/vdtMath.h' file not found
Problem callding RDataFrame::Define with ColumnNames_t with python
Print parameter of function (TF1)
Deregister TTreeReadeValue in TTreeReader
Giving title to divided canvas
Many documentation and faq links are broken on root.cern.ch
Writing already defined function
Embed ROOT in wxwidget application using Code::Blocks on Windows 10
port root6 with Error in <HandleInterpreterException>
Bug report DrawClone!
PyROOT: Finding local minima/maxima in a TGraph
RDataFrame conditional weight assignment
Good day . I am new to roofit and i am fiiting a crystal ball fit to my signal. Please help me
TChain not finding trees in input file
PyRoot TCanvas is not persistent
Plotting histogram from the discrete user defined function
R__LOAD_LIBRARY help
How to fill two different histogram by two different colour?
Draw macros for histogram
ROOT RDataFrame does not has AsNumpy()
gSystem->Load("mySharedLibrary.so") can not load debug info
Two histogram in one plain
TVirtualPaveStats.h:33:43: warning: extra ';'
Root and virtual machines
How to extract values on the X-axis?
Problem in 2D graph
2D histogram where bin contents are the fitted gaussian sigma of data in each bin
I draw a histogram from .txt file. The resultant histogram consist several peaks, how can i gaussian fit the histogram automatically detecting the peaks. I tried the tutorials>spectrum>peaks.C but did not succeed
Significance bin by bin
Drawing histograms on pads in canvas - only one plot shows
Running a C++ Script in ROOT
TTreeReader does not find branch, TTree::Draw finds it
Look for a specific peak in a histogram
RDataFrame use of undeclared identifier
Issue in compiling my code
Integration in ROOT
Online learning in TMVA's MLP method
TH2::Draw("TEXT") : set text size
Fitting two peaks alongs with the background
TTree GetEntry memory problem
How to get started with pyroot?
Issue Recognising Type Specifiers
Axis title in histogram gets cut by the canvas
No string_view on lxplus
The constant of decay function?
Vector of vectors in TTree vs. RNTuple
FFT on Histogram
How to have properly weighted error bar from a weighted RooDataset
Error "ResizePad"
Compile ROOT with Visual Studio 2019 - list of dependencies
Least squares regression to solve a rectangular system?
Problems with TTree.Project("my_histo", "my_var")
RooRealSumPdf inside a RooAddPdf and Generation of toys
.Draw() - appears the empty window, why?
Malloc failed error
The errors occured when using root as external library to write c++ code?
Multiple histograms / TPad - TLegend issue
Std::string linkage problem
TProof crash sometimes occuring when using compiled Tselector
RDataFrame runtime_error
How to tie a single fitting variable to multiple histograms?
Root Latex symbols not showing correctly in pdf
Get Random Points following a given TF1 distribution
Unnaturally small chi-square; no fit convergence with non-zero errors
Ascii file to ttree
SetBranchStatus for a vector of string
Add Friend with RDataFrame
RDataframe with branch contain NaN
ROOT Can't Compile a Macro but a Makefile Can
Error running Macro
Signal Yield and integral of signal func tion in full region are not same
Energy deposit in Circular fibers . Are Square bins OK?
How to prevent new histograms from being written to an opened ROOT file?
Fit Get / Set Parameters
Using basic_string_view = ::std::experimental::basic_string_view
ROOT crash after system reinstallation
Problem with DRAW Option "CONT4Z"
Given a point and a TGeometry, return the Node or volume that contains the point?
Font size for histogram
Plotting TCanvas using if, for and while
Fitting histograms convolution
Is there a way to move a TTree to a already existing TChain ? (without storing the TTree to a root file)
Plotting of 1D distribution for Max Energy in Z
Changing Title of Canvas Populated by the Underlying Histogram
Log calculations in Root 5 vs Root 6
Problems building root 6.18/04 with builtin davix
Tutorial histogram/ fillRandom.C example The graph isn't drawn
How to do b (Jet.BTag) cut form .root file
Problems Compiling ROOT 6.22.02 on mac OS Catalina 10.15.6
Long time to close ROOT file with O(500k) histograms
Problems building ROOT on CentOS8 (cppyy issue)
GSL MultiRootFinder "not making any progress"
ModuleCmd_Load.c(208):ERROR:105: Unable to locate a modulefile for 'AliPhysics/'
Missing definition of class TVector3
Delete multiple branches from atootfile at once
Problems after ROOT installation/update
How to fit two Gaussians on two seperate peaks in a spectrum?
C++ representation of histogram plotting
How to obtain offline file like .chm?
Root permission denied on MAC PS
Export data ( .root -> .txt)
Missing libPyROOT.so
RooSumPdf and RecursiveFraction with a scale factor on one of sub-components
What versions of python can I use with the binaries you provided?
TRatioPlot: Legend with some entries filled, but one as a "p"
Python array in TH2 construction
Using python cutting function in drawing histogram in PyROOT
CrosshairWindow in macOS Big Sur
Passing arguments to a root macro which is being run from a script which is passed to Condor
Machine learning with tensorflow
Segmentation Errors while doing root install with python
Building root on windows 10 again
How can i fitting two kind of function
Position of vertical error bars in simple plot
How to improve fit/add background function and gaussians to one fit function?
Defining my own palette in pyroot
Gausian Fit in a histogram
RDataFrame and Friend and python
Understand Axis Range
ROOT on MacOS Catalina
Problem compiling root WSL 1 Ubuntu 22.04
Problem filling large array using TTreeReader
TLorentzVector units
Building root on lxplus with pythia6
Passing parameters
Installing Root6.22 from Source on Windows10
Mutexes when running inside Geant4 threads
Strange problem with schema evolution, streamer info and class versions
Correlation between truth and reco events
Running in batch mode?
Error using GetConfidenceIntervals
Problem in using Max$() with TTree::Draw()?
Random from interpolated TGraph2D
Analysis of the example 'fitConvolution.C' in Fit Tutorial
TF1 instantiation is extremely slow
gROOT ProcessLineFast
How to check "Math::Mnimizer" status?
Combining two canvases into one
Error/Warning while reading histograms
Make RDataFrame from TChain where 2 ntuples contains 90% of overlapping branches and do a proper snapshot
Counter give negative value and error
Problem calling RDataFrame::Define from PyROOT with plain function
How to count no. of entries per bin in a histogram?
When i integrate the graph, the values seems to be a little
Unable to RUN TMVA . GUI NOT Opening in ROOT VERSION 6.22.02
Efficient way to produce a lot of Histo1D having an RVec<double> weight column
Error using Projection. Trying to dereference null pointer
ERROR in cling::CIFactory::createCI(): cannot extract standard library include paths! after Ubuntu upgrade
Optimizing Reading Arrays from TChain
Reading events from a TFile that is being written
How to construct an histogram in logarithm schale from one already filled
Different random numbers, Normal Distribution
Passing arguments to function called by .Define in RDataFrame
Does Warning in hadd root files
TCanvas can not saveas png
Dear Colleagues! What is philosophy for generating dicrtionaries for integrating class into root? Thanks!
What is the minimal installation of ROOT on MacOS pour execution only?
Error in <TRint::HandleTermInput()>: std::out_of_range caught: vector
How to convert a text file(which has six rows) to root file
File not closed after writing a tree to it with CloneTree()
Fit - first derivative **at limit**
Problem with Root and Geant4
PtEtaPhi for dimuon
How to make the X-axis to "log"
Error on Root Installation
Using CopyFiles.C
Calculate cross section
Time axis with a given data
Copy existing histograms into a tree
How to use "Form" command in TString class
What will get in the "cut=cut_s.data()"?
Set axis range on THStack
How to minimize by minimization class
RDataFrame not able to read branches containing array whose size is of type Short_t
Root and Gate on HPC CentOS8
EVE - Reproducing alice_vsd - how to center the projected views?
Advanced usage of TLinearFitter?
How to make transverse momentum intervals and how to do a certain operation in the transverse momentum intervals?
Problem reading file to fill a TH3F
Area under curve problem
Wrong Gaussian Fit (data from File)
Problem calculating the mean values
Get entries random
Converting root file to csv using root2csv
Unable to Retain the Style of the projection Histogram on using HBAR
Changing line styles using hbar option
Units of sigma in smearing
Function DividePad() is not defined in current scope
ROOT install failed after Cmake build
Normalize sample to BR, Luminosity & XS
Compilation error related to TUnfoldDensity::GetFoldedOutput()
Installing root on windows 10,64bit for visual studio 2019
`GLIBCXX_3.4.22' not found
Null passed to a callee that requires a non-null argument
Failed to build ROOT 6.22/xx on Arch Linux ARM
Can't built ROOT Version 6.22/06
Using gentoo closing the terminal
Different quadratic fit(Data from file)
Unable To Access Elements Using Take Action
Read a histogram
C++ requires a type specifier for all declarations
Saving pandas dataframe as TTree with RDataframe
Draw 2 objects in different windows?
CMSSW/Python won't write the ROOT output file
RDataFrame Filter for arrays
Confusion when declaring a TFile
How can I get Y value in X point in TF1?
SegFault calling GetN() method of a TGraph object
TClonesArray caused mysterious crash in TTree I/O
Landau fit problem
Issue compiling ROOT master from source on Mac OS Mojave
Making a single RDataFrame from lots of files
Need help building ROOT v6.23.01 on ARM MacBook
File size of a closed remote file
RDataFrame Define columns with same name
Hide fitting result in terminal
Pass an TGraph2D array as argument to a minimization function
Macro not found in file path
How to convert window log csv file to .root file
How to subtract two histogram?
Can not open TBrowser (Ubuntu 20.04LTS)
Debug root script called with arguments
Display error at WSL
How to set TPalette color in default?
Complex number based
Complex number imaginary
Macros related problem
THStack GetHistogram?
Error when running gApplication in root v6.22
Adding a new branch from a python ML model
How to plot x variable in vertical axis and y variable in horizontal axis?
Normalize to SM higgs XS and BR
TGLVector3 using
Feldman Cousin 90%CL
Histogram declare position matters or namespace matters
RooFormulaVar error in ROOT 6.22.06
Corrupted root file check
When i fitting the histogram using fix parameter. How can i get the fitted grah's integral error?
Memory leak with RDataFrame in Python
Extremal edges of histograms drawn incorrectly
Apply weight to each events
Error during make phase on cluster
Segmentation Deviation
Finding the Tree name in a .root file
How to use RDataFrame in pyROOT to loop events and calculate weighted efficiency?
How to declare global pointers like gSystem?
Problem building root 6.22.06 from source
Randomly a segmentation fault for uninitialized TTree
Where to find the parameter of the function Draw() of TF2 class?
Problem Macro crashes
Operation on RooDataSet and RooDataHist
How to use root library in c++ projections?
Problem with class: Symbol lookup error
RooStats: Change of Constraint does not change Profile Likelihood Plot
Ld: can't use -undefined warning or suppress with -twolevel_namespace
JIT compiling RDataFrame filters and defines within condor
ROOT Manual - Basics: Object Ownership Question
RDataFrame and CreatePoxy/TTreeReaderValue error for selection on string branch in Filter method
RdataFrame and jitted code memory consumption
Save histogram in txt file
Which header file include the "gStyle" global pointer?
Efficiently performing arithmetic with TNtuple branches
Fitting a plot just in a range
Tricky (to me) memory leak when creating a TGraphErrors using copy constructor
Histogramme filling
Getting pad width
Numerically compute second integral (not two dimensional integral)
Why the solid line become line of dashes?
Help to extend Covariance Functor for RDataFrame functionality
Write TTree out to file seems to corrupt it
Wrong range enabled by default when filling a histogram
High memory usage when performing simulation and TTree filling
Multiple limit plot in one canvas
Wrong links in TGraphPainter documentation page
Kernel failed using ROOT C++ in jupyter notebook
CUDA architecture for root?
Questions about using sumw2 while making ratioplot
How to get treename from RDataFrame
Is there still has the class THilbertMatrixTSym in root projection with version 6.24/04?
Index out of bounds on TMatrixDSym using RDataFrame in PyRoot
TFile::Open() fails with non-canonical filename (double slashes)
Accomodating two graphs on the same canvas
Error for installing Root source in Ubuntu 22.04
Reading Tree data from different events in the same loop (coincidences)
More than one tree with same treename in a root file
Upgrading from 6.22/09 to 6.24/02
ROOT complier issue
What is the problem in draw cut?
Error: illegal pointer to class object <histogram> 0x0 1401
Building root with standard set to C++20 results in compilation errors on Linux
Fast Fourier Transform on TH1
Error Integral is too large?
Problem installing ROOT--XROOTD package download failure
Understanding rdataframe from TFile with many trees
Problem when accesing volume daughters through specific TGeoNode
C++ code keeps crashing
RDF read std::vector<std::vector<double>> from TTree
ROOT7 TTree->RNTuple example (ntpl003) with vector fields
Installing ROOT on Apple Silicon based mac
Workaround for TMath::Max( RVec<double> , RVec<double> )
Curve saved as polyline in root file
Selecting entries hitting two detectors
TFractionFitter: MC templates shifted
RDataFrame multi threading slower than one thread
RDataFrame vs TTree performances
TChain::LoadTree()
Adding a circle on a contour plot
Assigning the same magnetic field strength to a colorbar at a contour plot
TEfficiency using histograms from a separate root file
Plotting the data points from Tefficiency in customized bins
Error in installing root numpy
Use TTree::Query before the event is written to the tree
Plotting the contour lines
How to draw histo BEFORE return?
Error in installing Root 6.24.04 on Ubuntu 16.04
Plotting difference between two branches of two ttree
TLegend problem
Upper limit on a 0 result
How to install ROOT on centos-9? Some errors on different methods
Prevent RDataFrame from crashing the interpreter
Y-axis resdual plot
Adding data from an external container to a DataFrame
Ever Since the Upgrade, ROOT and any of my programs based on ROOT don't work
Add enum class in namespace to Root
How to detect XrootD error and protect the output
RDataFrame reading Garbage Data
Likelihood Ratio Test for significance with a TGraphErrors
Error in pyroot using Fit.FitFCN
Regarding memory usage of TCahin Draw or RDataFrame Histo1D
The data of TTree leaves with red exclamation marks is not visible
PyRoot demo hangs on Mac
Does the order in Filter and Define within rdataframe matter?
Likelihood fit changes signals order
How to plot "stdev of Y vs X"?
Do graphs support alphanumeric labels?
Merging datasets within RDataFrame
Standalone application with ROOT 6
Filter RDataFrame in a range of entries
I'm trying to fit 3D data into a line
Get the size of a TTReeReaderArray
Low performance merging files with RDataFrame plus multiple cycles
Saving numpy arrays into TTrees
Just-In-Time Compilation with Classes
Making the x and y axis the same axis ratio (1:1)
Histogram multiply and division
RDataFrame Inputs for a Just-In-Time Compiled C++ Class
RDataFrame Histo2D filling with RVec's
Fastjet within root
Wildcarding file names with hadd on windows
Activating/deactivating branches
Filling a TH1F Conditionally in a "For" Loop
About the different Image format,pdf is dffetent
GetMaximum -1111?
Understanding usage of RDataFrame Filter and Define functions on distributed data
__ROOFIT_NOBANNER=ON CMake option seems to have no effect
Libzip mess (ROOT cmake problem)
How to define a C++ map
How to disable cling warnings in jupyterLab
Why this TGraph is not being drawn?
RDataFrame -> AsNumpy as jagged arrays
Get TreeNumber of chain in PROOF
Pol1 Fitting problem
Reproduce a thf1 or thf2 using a data string from the TTree
"test_with_dictionaries" project
Change in build procedure
How can I modify TH1D and TProfile public member function for variable binning?
Envelope function
Trees and objects
How to draw optimiation of 2D between two variables?
Integer values on x-axis of multi-graph
Conda root and MacOS 12
Issue with rootcint in Root 6.24/02
Writing map<enum class, custom Root class> to tree
How to divide the each bin of 2D histogram to max bin
Nan in error fitting
About TCanvas::Print
Trouble linking against ROOT libraries
Filter data frame using external flags
RDataFrame - Define a new strcuture type branch with leaflist
Webpanel tutorial error
Cannot find generic objects in workspace
H1D modifications are lazy in rdataframe?
How can I draw a TPolyLine3D on the new web-based RGeomViewer Widget?
Problems with THStack
What are the meaning of the parameters of TGeoMaterial(name, a ,z, rho)?
How to read ndjson file, create a dataset (TTree) and store in a root file (TFile)?
Compile errors with Delphes and ExRootAnalysis
Getting CMSSW_VERSION from a root file
Installing root with XCode 14 on MacOS 12.6
ROOT.RDF.MakeNumpyDataFrame producing wrong histo
Reading root file with julia
Trying to use Plugin feature with ROOT6 with -std=c++17
Error in <TRint::HandleTermInput()>: std::bad_alloc caught: std::bad_alloc
How to add my defined function to TBrowser?
Make clean - bug or feature?
Bessel Function
RDataFrame misinterprets column containing bitsets
Error with Readoptical.cpp
Converting Geant4 geometry to ROOT
Pythia father or mother particles
Trouble builing root locally
Problem in accessing individual elements of an array branch through RDataFrame
FitPanel plug in
Error when accessing the root file
pyROOT issues
How to install root?
Python class loaded with TPython unkown to C++ interpreter
ChangeLabel-JSROOT
How to use c++17 with root
How to save RVectors of LorentzVectors in ROOT files?
Smooth a Graph with Gaussian Function
Failing to build root-6.24.06 and root-6.26.02 on Fedora 36
Reading DAOD_PHYS into RDataFrame
RDF Define at PyROOT using C++ code not working
How to make stat box appear
Problems with changing label
Trouble with getting GetChiSquare() function running properly
Error building root Freetype
Can some x-axis value be replaced by some character in TGraphError?
TTree memory limit
RDataFrame Aggregate within pyROOT
Looping over root files in a folder
Regression line fit
TGMainFrame problem with close button
View contents of ROOT file like a csv viewer
How to make a C++ projection using Root 6.26.04 class library?
Integral ROOT
How to draw a TGraph2D for TF2
Error merging histograms with "similar" x range
Parameter issues with TF2 contains 2 same TF1
Parameter issues with TF2 contains 2 same TF1
How to remove the commas from the axis's values?
C++ version in Root
Can't compile with gcc in zsh shell
Erroneous Error messages from TTree::Draw
Where is the package "ROOT" in python2.7
Understanding performance of EnableImplicitMT in RDataFrame
Memory leak when processing RDataFrames in python loop
RDataFrame String Filter Question
Problem when filling tree from Pythia
Running Pythia8 under Root
Implementing rolling average of data (using a normalised gaussian function)
TH1::GetQuantiles() gives wrong value for 100 percentile?
ROOT <-> HDF5 interface
Set first axis number to draw
Is this a legitimate release of ROOT?
ROOT installation failure v6.32.10 on osx
Geant4 visualisation showing a blank screen, but can be interacted with
Jet parameters
How to save a branch of vector of vectors in an existing tree in pyroot
Can't get axes titles in TF1
Setting a fit parameter in one part of a function relative to another and varying it only in the first part
Passing Templated Functions to RDataFrame
Problem of draw fit result
Error when building root 6.26/06 on MacOS Monterey 12.6
Can't get object from root file
Old root reference guides (v5.34)
About the rootfile and histogram
How to call back histograms and their features with unknown name?
ROOT Function Plotter
How to consider uncertanities while fitting a histogarm
Saving branch of vector problem in VS2022
pyROOT doesn't recognize "SAME" in histogram plot
Confusion on how to run processes in parallel
Reading data file to fill an histogram ignoring some lines
Compiling C file with .L
Histogram visualization
4D Interpolation Methods
Making CMake and dictionaries work together in a shared library in 2023
How to do operation between two RDataFrame objects with different dimension?
Maximum Likelihod Estimation through Minuit
Should the result of TDirectory::GetDirectory() be deleted?
Which one is more time-consuming? Multiple TH1 or Single TH2
Axis Title Offset in ROOT 6.26
Get color by value from a palette drawn with "COL" option
How to properly reset canvas and everything in it for reuse?
Operator() as functor in class
Install on MAC M2 with macOS 13.2
How to draw th1 only with vertical error bars?
Way to filter individual columns and return signficance using sig/sqrt(bkg)
How to set the DrawOption for y Projection using the SetShowProjectionY for a TH2D Histogram
Hadd command multi processing reaches writing limits
How can read data from ROOT files
Time taken to GetEntry(i)
Draw a TH1 on the center of a TH2Poly bin
Is there any way to get a entry from a single bin?
Installing ROOT on Windows 11
ROOT::Math::PtEtaPhiMVector> usage problem
Mac OS Ventura - Compilation Fail
Problem on Mac OS X
Problem compiling root on Mac Ventura
Vector<vector<>> dictionary missing for TChain in PyROOT
How to create sub-sub branch manually
Problem of ROOT with crmc codes
How to change marks for line bars curve
How to change the Fit minimizer algorithm
Fatal error: Pythia8/Pythia.h: No such file or directory
Question about the fit error from TFractionFitter
Correct Global Day Conversion functions for ROOT::TDatime
How to make fit with log-likelihood method using TGraphErrors
Storing histograms in root file and produce png file
*** Break *** segmentation violation while using geometry package
TGraph binning
Integer division
TF1 function take 12 variable?
How to correctly write recipe/meta.yaml for projects based on conda-forge/root?
Coordinates of hottest cell and energy distribution
vector<vector<Struct>> and RDataFrame
TMVA Weight/Normmode and sample inbalance Confusion
Fitting Spline functions but get NaN value
TClonesArray with fStreamerType: 501 error while filling/reading a TClonesArray of TLorentzVectors
Basic operations on RDataFrame
Trying to create multiple tree branches
Use TF1 using the leafs of a TTree
Can not update Canvas in a interactive mode of ROOT
How to set up the attributes of a palette?
Summing energies from two branches under certain conditions
Segmentation violatoin
Problem fitting with user defined functions
How to find 2D Histogram min and max value
Position of the Title
Migrating GUI Elements from ROOT5 to ROOT6
Root Crash Version 6.26/10
How to plot a multiple Histograms from a ROOT file
Missing stats box and "stats" pointer is null
Tessellated volume behave like box after transporting with GEANT 3 and 4 after converting CAD to root geometry
Installing ROOT with the extension R
FastJet within ROOT import issue
Calculate the derivative with respect to each parameter
Compound tokens in TString
Class with TVectorD members
GetObject member function for TFile
Extra vertical space on a canvas when CanvasPreferGL is set to true
Failed to load module Darwin with root6.24 installed by conda, Venrura13.3.1 and MacOSX13.3.sdk
Root_generate_dictionary
How to displaying plots on TCanvas with compiled ROOT macro?
Issue with Histogram Bin Sizes
How to use CMake to compile with ROOT libraries
Summation of elements of unknown array in group
How to read multiple functions in ROOT macro
Transforming bivariate Gaussians instead of generating
TTree Draw special function Sum$ not working as expected
Undefined symbols for architecture arm64 when trying to build
Latest root binaries for Windows 10
CMake cxx_std_* propagation
Build error on MacOS, macports... with unctrl.h / ncurses.h
Facing error while plotting histograms
ROOT.TTreeReaderValue function doesn't recognize double and ctypes.c_double type
Proper way to display a RootCanvas from within a Qt GUI app?
SetBarOffset not working
Projecting a branch with an uncorrelated conditional
Error: 'Fill' is a private member of 'TProfile'
How to extract histogram data from .root file
How to draw the following graph
Color names in python
Root broken after removing build directory
Title and Label size scaling inconsistent behaviour
ImportError: Failed to import libcppyy3_8. Please check that ROOT has been built for Python 3.8
RooCurve::average(Model) invalid range
Cannot compile ROOT on mac... still
Why the result of the df001_introduction is not same with answer
Memory issue when trying to convert RDF to pandas using AsNumpy
Compiler seems to not see Root?
Help figuring out linking error when compiling
Fit a linear regression to a 3D plot
Fatal error: malformed or corrupted AST file
The rootrc key TFile.v630forwardCompatibility does not work correctly
Memory reduction when loading ROOT RDataFrame in python
How can we mock data?
Problems in PyROOT and calling in ROOT functions
Particle direction
Extra space when using ^

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