Add indexed_by= arg to Scenario.par_list() etc.

iiasa / ixmp

The ix modeling platform for integrated and cross-cutting scenario analysis

https://docs.messageix.org/ixmp

Apache License 2.0

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Closed khaeru closed 1 year ago

khaeru commented 3 years ago

message_data has a utility method iter_parameters("node") that returns the names of all ixmp parameters indexed by (for example) the set "node".

Add to ixmp.Scenario.par_list() an optional argument indexed_by= that provides this feature.
Enhance Scenario.set_list() etc. in the same way.
(Extra) Add a more generic method like Scenario.list_items() that returns items of type set, par, equ, and/or var according to an argument.

LauWien commented 3 years ago

The utility method iter_parameters() got moved upstream from message_data to message-ix-models by commit https://github.com/iiasa/message-ix-models/commit/4d357025db72ec7b3d3bd5add9d19ed4f66e7cf4.