Installing conda and root
This is derived from the excellent https://iscinumpy.gitlab.io/post/root-conda/ by Henry Schreiner
Currently this has been tested on OSX and Linux distributions SL7 and AL9
Download miniconda
-
Do you have wget on your system? If not, get it
-
Download the miniconda installer
# Download the Linux installer
wget -nv http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
# Or download the macOS installer
wget -nv https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -O miniconda.sh
Install conda
# Install Conda (same for macOS and Linux)
bash miniconda.sh -b -p $HOME/miniconda
- add this to your .bashrc or .profile to start it up when you log in
source $HOME/miniconda/etc/profile.d/conda.sh # Add to bashrc - similar files available for fish and csh
Making an environment with root in it
conda create -n my_root_env root -c conda-forge
This will take a while. In the end you have an environment which contains root and a lot of other useful things
You can repeat step 1 to make different conda enviroments.
Try out your new environment
To activate a particular environment you do:
conda activate my_root_env
First time you use your environment you can do
conda config --add --env channels conda-forge # only
the config command tells conda to use conda-forge as a default. You should now have a conda environment with root in it.
Testing
(my_root_env) wngr405-mac3:utilities schellma$ root
------------------------------------------------------------------
| Welcome to ROOT 6.28/00 https://root.cern |
| (c) 1995-2022, The ROOT Team; conception: R. Brun, F. Rademakers |
| Built for macosx64 on Mar 21 2023, 08:18:00 |
| From tag , 3 February 2023 |
| With |
| Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q' |
------------------------------------------------------------------
root [1] .q
To get out of root type
root> .q
Try this
root -l -q $ROOTSYS/tutorials/dataframe/df013_InspectAnalysis.C
You should see a plot that updates.