text: """
  This script shows how to run a Fast-Trips trace for a single person-trip by adding two keywords to the call to run_fasttrips():
   - trace_ids = list of tuples identifying which trips to trace ("<person_id>","<trip_id>")
   - debug_trace_only = boolean value for whether to only run fast-trips for the traces [ versus whole trip list ]
   
  Run from within fast-trips/scripts folder.
  
  In addition to normal fast-trips outputs, outputs: 
  - fasttrips_trace_<person_id>-<trip_id>.log  
  - fasttrips_labels_<person_id>-<trip_id>.csv
  - fasttrips_labels_ids_<person_id>-<trip_id>.csv
  
  """
  
  USAGE = """
  python run_trace.py
  """
  
  import os
  
  from fasttrips import Run
  
  EXAMPLES_DIR   = os.path.join(os.path.dirname(os.getcwd()),"fasttrips","Examples","test_scenario")
  
  Run.run_fasttrips(
      input_network_dir= os.path.join(EXAMPLES_DIR,"network"),
      input_demand_dir = os.path.join(EXAMPLES_DIR,"demand_reg"),
      run_config       = os.path.join(EXAMPLES_DIR,"demand_reg","config_ft.txt"),
      input_weights    = os.path.join(EXAMPLES_DIR,"demand_reg","pathweight_ft.txt"),
      output_dir       = os.path.join(EXAMPLES_DIR,"output"),
      output_folder    = "example",
      pathfinding_type = "stochastic",
      overlap_variable = "count",
      overlap_split_transit = True,
      iters            = 1,
      dispersion       = 0.50,
      trace_ids        = [("0","trip_4")],
      debug_trace_only = True)
  
      