[FIXED] HIGHs documentation for Python Scipy module

Issue

I am working on a REST Api that uses SciPy's linprog. While using this function I have get many correct results but sometimes I get errors. But I am unable to find proper documentation for different possible errors.

The error statements are like, HiGHS Status 8: model_status is Infeasible; primal_status is At lower/fixed bound or HiGHS Status 8: model_status is Infeasible; primal_status is Basic. I am unable to find what the primal status is and does it means to be basic and lower/fixed bound. Is there any Documentation for these errrors or any online repo

Solution

This documentation for HiGHS, which is the software that scipy is using under the hood, might be helpful to you: https://ergo-code.github.io/HiGHS/dev/terminology/#Optimization-outcomes

That specific error message is telling you that the constraints which you have specified cannot be satisfied. There might be a flaw in the logic you use to define the bounds of the search space.

Answered By - Ben Jeffrey