Eventdisplay Analysis Scripts for VERITAS

Eventdisplay analysis scripts for VERITAS, see [EventDisplay_v4)(https://github.com/VERITAS-Observatory/EventDisplay_v4) for the reconstruction and analysis codes.

Eventdisplay v490 is a major update with significant changes.

1. NN Analysis support

Script support different analysis types, including the optimised next-neighbour cleaning.

Best to set a environmental variable $VERITAS_ANALYSIS_TYPE to either TS (standard threshold cleaning) or NN (optimised next neighbour cleaning).

Scripts should pick up the correct settings (e.g., IRF.production.sh will set the eventdisplay reconstruction parameter file to EVNDISP.reconstruction.runparameter.NN.v4x for NN cleaning)

2. dispBDT Angular Reconstruction support

Scripts to train and use dispBDT regression trees for the angular reconstruction.

Training scripts are IRF.trainTMVAforAngularReconstruction.sh and reconstruction scripts are IRF.mscw_energy_MC.sh and IRF.generate_mscw_effective_area_parts.sh. Note that at this point dispBDT reconstruction is switched on by changing a flag in the IRF.production.sh script.

3. Condor support

Introduce HTCondor support (as this is slowly introduced at DESY in 2022).

Only change necessary to use the the HTCondor system is to set * condor_submit in the submissionCommands.dat file.

(and just not to forget it, queue status is checked with condor_status, job status with condor_q at DESY)

4. Support for zstd-compressed evndisp MC files

Support zstd compressed MC evndisp root files.

This involves a slightly different directory structure for IRF production, where MC evndisp files are now located in $VERITAS_IRFPRODUCTION_DIR/v4N (all other IRF data products are stored in a similar directory structure as before)