speedup in generation of _dataset_used and _jac_assign_rules - don't use pandas groupby (use general_functions.groupby_unsorted instead) - don't reindex param_dyn_df to _groupindex ... use param_dyn_dict directly - all this results in major speedup (especially for high number of groups)
speedup in generation of _dataset_used and _jac_assign_rules
- don't use pandas groupby (use general_functions.groupby_unsorted instead)
- don't reindex param_dyn_df to _groupindex ... use param_dyn_dict directly
- all this results in major speedup (especially for high number of groups)

TUW-GEO/rt1