anchor.diff:    -l, --loss_analysis
   
   Following code snippets assume that it is being run from the root directory
  -of the SIFRA code, and the model of interest is in the location
  +of the SIRA code, and the model of interest is in the location
   `sira/scenario_dir/ci_model_foo`.
   
   The following code runs the simulation and the post processing simultanrously:
  
positive.code: has been done in the code backend to extend the same methodology to modelling
  network vulnerability as well (e.g. electricity transmission networks).
  
  SIFRA models are based on graph theory. All infrastructure systems are
  represented as networks. This allows an user to develop arbitrarily complex
  custom facility models – for a Facility or a network – for impact simulation.
  
  
negative.code: 
  The detailed documentation is at this http://geoscienceaustralia.github.io/sira/[link].
  
  SIRA stands for **System for Infrastructure Facility Resilience Analysis**.
  It represents a methodology and supporting code for systematising vulnerability
  analysis of lifeline infrastructure to natural hazards (i.e. response of
  infrastructure assets to environmental excitation). SIRA is open source.
  
  The impact assessment is based on the fragilities and configuration of
  components that comprise the infrastructure system under study. The analytical
  