Support constant values in objective
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data-model
enhancement
model formulation
- Dominant language
- Python
- Stars
- 257
- Forks
- 87
- Avg merge
- 1d 3h
- Merged PRs (30d)
- 29
Description
- if the problem need to convert multi-objectives to singe-objective, it's necessary to make normalization involving some constant variables.
It's not conveniet to construct objective containing constant, such as x+1
Here is a trick to add constant
constant_1=m.add_variables(lower=1, upper=1,name="constant_1") - class Variable only have sum function, other operations are also needed, such as std
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
The issue points to the Variable class and the multi-objective normalization path. Read those entry points first to determine how constant objectives and Variable operations are represented; done should support direct constant terms in objectives and define and test the requested additional operations, including std.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- backend
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100