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Your workaround is the correct way of creating a Bus subsystem from all the buses in the areas supplied.
As for what you use them for:
psspy.asys() is used to create a subsystem of Areas. The Area subsystem will then refer to a set of areas, much like how a Bus subsystem refers to a set of buses.
Area subsystems are used in functions that indicate they take Area subsystems as the sid input. Most functions in the psspy data retrieval section take bus subsystems as the sid input. Only the functions under the subheading "Area Data" in the data retrieval section and the functions used to define Area subsystems (as far as my quick search could tell) take an Area subsystem as sid.
| | 2 | grammar |
Your workaround is the correct way of creating a Bus subsystem from all the buses in the areas supplied.
As for what you use them Area subsystems for:
psspy.asys() is used to create a subsystem of Areas. The Area subsystem will then refer to a set of areas, much like how a Bus subsystem refers to a set of buses.
Area subsystems are used in functions that indicate they take Area subsystems as the sid input. Most functions in the psspy data retrieval section take bus subsystems as the sid input. Only the functions under the subheading "Area Data" in the data retrieval section and the functions used to define Area subsystems (as far as my quick search could tell) take an Area subsystem as sid.
