Extend historical parameters to track all VAR when shifting `firstmodelyear`
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enh
gams
help wanted
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Description
Currently, only select VAR is tracked via historical parameters, meaning that when shifting the firstmodelyear a lot of information for example PRICES and total installed capacity are lost and cannot be traced.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the historical-parameter handling and the VAR tracking logic in the message_ix codebase. Check how shifting firstmodelyear currently preserves parameters, especially PRICES and total installed capacity. Done means all VAR information remains traceable after the shift, with relevant tests or examples updated to verify this behavior.
Written by the indexing model from the issue text.
Assessment
- Domain
- data
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100