Feature/combine sd

[mdolce8]

A new python script to take the output ROOT file from PR #130 (truth_signed_distance_mu_momentum_slices.py) and plot all of those distributions together on a single plot. That is, a single plot of all true signed distance distributions in different slices of muon KE. There are two plots: one for slices of KE of muon at birth (in LAr) and one of the slices of KE of muon entering TMS.

Note: this script uses uproot and matplotlib so user needs to install these via pip install --user <pkg> (and any other dependencies). I made a comment of this at the top of the script.

Here is an example of the plot.

[mdolce8]

Here is some help on getting the script to work, because several python packages have to be installed. Here is what I needed. Using pip install --user :

matplotlib
packaging
pyparsing
dateutil
uproot 

--user means packages are installed to local area: /nashome/<principal-letter>/${USER}/.local/lib/python3.9/site-packages
In some cases I also needed to --force-reinstall bc python was getting confused (I think bc these packages may be in a global location somewhere).

[LiamOS]

I'll make a note (try) to add matplotlib and uproot to the spack installation so that this Just Works™ on the GPVMs.

[LiamOS]

Code seems fine, plots look good 👍