Yiran Wang
- Total activity 9
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 2
Activity overview
Latest activity by Yiran Wang-
Yiran Wang commented,
I hope you don't mind me adding some more details to the question I asked earlier. The specific situation I've encountered is as follows: When I run the code to solve the same model without maki...
-
Yiran Wang commented,
Thank you, Maliheh. I'm glad to receive your message. Yes, I am running Gurobi via Python. The model has been written the model into an MPS file and run by reading it from the MPS file. But the pro...
-
Yiran Wang created a post,
How to ensure consistent values of .PI when the dual problem has multiple optimal solutions?
OngoingHello, I'm encountering an issue while using .PI to obtain the values of dual variables. I ran the same code multiple times without making any changes, yet the results of .PI turned out to be diffe...
-
Yiran Wang commented,
Thank you, sir. The problem is, I have to keep the bounds in variable definitions, and I want to find a way that I don't have to use m.RC for adjustments. Any solutions?
-
Yiran Wang commented,
Hello sir, I hope you don't mind me adding some more details to the question I asked earlier. I followed your advice and used .RC to get the reduced cost for each variable. I noticed that the VBas...
-
Yiran Wang commented,
Thank you, Riley. I have a further question. When there are degenerate bounds, is there a way to reflect the values of m.RC into m.Pi so that I don't have to use m.RC for adjustments and can just u...
-
Yiran Wang created a post,
Why do the dual cost obtained by .pi seem incorrect, when the upper and lower bounds of variables are defined using "model.addVar"?
AnsweredHello, I have defined a model called RMP with the following form: The upper and lower bounds of the variables (lb=0 and ub=1) are defined using "model.addVar" rather than constraints. After optimi...