[Scip] Changing the bounds of a FIXED variable

Vivek Periaraj vivek.periaraj at gmail.com
Mon Mar 11 17:01:01 MET 2013


Just to clarify. 

1) I fix the variable before solving and when pricing a new column, I try to change the bounds. I guess it will not work, correct?
2) My other option is to delete variables before solve and add them as I price. But delete doesn't work too or I am not doing it right?

Thanks,
Vivek.

----- Original Message ----- 

From: "Vivek Periaraj" <vivek.periaraj at gmail.com> 
To: scip at zib.de 
Sent: Monday, March 11, 2013 9:17:37 PM 
Subject: Changing the bounds of a FIXED variable 

Hello, 

1) Is there a way to change the bounds of a fixed variable? I fix it using SCIPfixVar() but SCIPchgVarLb() and SCIPchgVarUb() does not allow me to change the bounds. 
2) How to delete a variable from the problem object. If I do SCIPdelVar(), the variable is marked for deletion but it's not deleted from the problem object. 

Regards, 
Vivek 


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