CAN YIN

Hello Riley   Sorry to bother you again, but I just realized there is another issue, could you please help me with it? So the issue is, I am using an iterative approach,  I try to build the model "...

Hello Riley   Thank you very much for your help. I am using an iterative approach and I am trying to return the subproblem variables together with the subproblem function. And now it works.  Thanks...

Hello Riley Thanks for your answer, it's really helpful and I really appreciate it.  I am using Python to get access to Gurobi, and I am trying to reset the model objective with the below code whil...

Hello Marika   Thank you very much, your answer is very helpful, I really appreciate it.   Thanks for reading and again thanks for your help Yin Can

Hello Marika Thank you very much, that helps a lot, at the beginning I want to set Presolve = 0 is want to compare solving time before and after removing the Presolve to see how different it would ...

Hello Marika I just upload the file with Filemail(https://www.filemail.com/d/dsuhpqpbdasornc), inside have the code, and the log file. And sorry that I new to the filemail, so please let me know th...

Hello Marika Sorry for the late reply and again thank you for your help, I really appreciate it. Might I know whether you mean the lp file, code, the log file, or something else?  Thanks for readin...

Hello Marika Thanks for your patient and also thanks for your answer. It's very helpful, and below is the first few lines and last few line of the log file, and the version I am using is  9.5.2.  T...

Thank you very much!

Hello Riley Sorry, I just found out where I made the mistake.  I should make z a non-negative variable to make it become a second-order cone constraint, and it seems fine right now.  Thanks for you...