[Coin-lpsolver] Fixed variables

Yossiri Adulyasak a.yossiri at gmail.com
Thu May 25 13:43:34 EDT 2006


I am doing column generation using Symphony and CLP solver.

I first try to solve the Restricted Master Problem to IP optimal, then I
would like to use the reduced cost from that solution to price the columns.


But to do that, I need to get dual/shadow prices from that RMP IP solution.


I can't seem to find a way to fix the variables to the IP solution (so that
I can use CLP to solve it as LP-fixed.)

Anybody can give me some ideas or suggestions.

Thank you for your time.



-- 
-Yossiri Adulyasak-
Undergraduate Student
Department of Civil Engineering
Chulalongkorn University
Thailand
a.yossiri -at- gmail.com
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