I'm trying to install the ROOT CERN packages on linux, using Ubuntu 18.04, and whenever I get into the prerequisites download, with this command: sudo apt-get install dpkg-dev cmake g++ gcc binutil...

I would like to use CERN ROOT to draw a 2d graph of pairs of x-y datapoints possibly also with y-errorbars. However I only know how to draw histograms. Is this possible with CERN ROOT? If so how? ...

I'm using CLion IDE, Cmake and trying to write Hello world using CERN ROOT library. CMakeLists.txt: message(STATUS $ENV{ROOTSYS}) ~/.bashrc: export ROOTSYS="$HOME/tools/root-build/" During bu...

Apparently, CERN's "Root" software is compatible (as of version 6.12) with C++17. However, I have been completely unable to get this to work with the newest version (6.20) and all previou...

I am currently writing a program that sits on top of a C++ interpreter. The user inputs C++ commands at runtime, which are then passed into the interpreter. For certain patterns, I want to replace ...

While using python with pyroot (a python interface to a CERN data analysis package named ROOT), I encountered the following strange behaviour: print ROOT.TFile(fname).GetListOfKeys() outputs Non...

I have a problem with my python application, and I think it's related to the python garbage collection, even if I'm not sure... The problem is that my application takes a lot of time to exit and t...

I'm trying to write a class that needs to deallocate some memory, so I've defined a custom destructor. This is compiled as a shared library. However, when I try to compile a basic program to use th...

I am in the somewhat unfortunate position to try to convert a program from the depths of CERN ROOT to python. In ROOT code (CINT in itself is an abomination imo), one can store mathematical functio...

The ROOT data analysis framework commonly used in high energy physics uses a binary file format that has internal structure like a real filesystem (i.e. folder & files). The ls() method output ...