Jingyue Zhang
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Recent activity by Jingyue Zhang-
set objective to get maximized results but Gurobi output Minimize
Awaiting user inputDear gurobi support portal： I've met a problem like this: my objective fuction is: m.setObjective(quicksum(e.sum(h,'*') * (rh[h]-lh[h]) for h in patype) - beta *(c1.sum('*'...
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Multi-scenario model Excel output
AnsweredHi， I've noticed that Gurobi provides multi-scenario models and can solve them simultaneously. However, I met a problem when programming. If I'd like to write results for different scenarios into E...
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ValueError: invalid literal for int() with base 10: ''
AnsweredI was running my program just fine. However, today an error occurs "ValueError: invalid literal for int() with base 10: " I'm very confused and don't know where it went wrong.
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License in a container environment
AnsweredHi， I'm wondering if there is a way to use the gurobi in a container environment.
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How to use shortest path algorithm to randomly generate a new data set?
AnsweredI heard that in Python with gurobi, there's a way to use the shortest path algorithm to randomly generate a new data set. However, I don't quite get how to make it applicable. Is there anything I c...
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With decision variables in 'for' loop occur：Error code 0: Constraint has no bool value (are you trying "lb <= expr <= ub"?)
AnsweredHi, I've been doing a MIP programming with Gurobi in Python. Gurobi Optimizer version 9.1.2 build v9.1.2rc0 (win64). The error code Error code 0: Constraint has no bool value (are you trying "lb <=...