Commits on Aug 6, 2020

1. Flip sign on waste exchanges in imported database …

       Rationale: The convention for waste exchanges in some databases,
       notably the ecoivent database, is the following:
       - waste exchanges produced by an activity are stored as negative
         inputs
       - waste exchanges flowing into a waste treatment activity have a
         negative
       In SimaPro, produced waste are stored as positive inputs, and waste
       treatment datasets have positive outputs.
       If left as are, the supply of waste treatment services from the
       linked-to database "other" to imported activities would have the
       wrong sign.
       This function flips the sign on all inputs from database "other" if
       the production amount for that exchange in the activity for which it
       is the reference flow is negative.
   
       Note: the strategy needs to be run *after* matching with ecoinvent.
       Strategy should be run as follows:
       sp_imported.apply_strategy(functools.partial(flip_sign_on_waste, other="name_of_other"))

   

   PascalLesage committed Aug 6, 2020
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