I'm not getting fractional values for 0-1 variables when I use glpk
from GNU Octave; so I imagine Octave is doing something behind the
scenes before it calls glpk.
Quoting Robbie Morrison <[email protected]>:
------------------------------------------------------------
To: "\"Benjamin" D?ring" <[email protected]>
Subject: Re: [Help-glpk] Binary variable with fractional value
Message-ID: <1317047498.5794.2.camel@corvax>
From: Andrew Makhorin <[email protected]>
Date: Mon, 26 Sep 2011 18:31:38 +0400
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Im using the GLPK package to build a scheduler in Java.
Even when I use the GLPK.glp_set_col_kind(lp, i,
GLPKConstants.GLP_BV) binary Variable, I get
fractional results like 0.5.
What am I doing wrong?
Please see:
http://lists.gnu.org/archive/html/help-glpk/2011-09/msg00035.html
Hi Benjamin
Just for the record, this issue is also written up in
the GLPK wikibook. Please see the troubleshooting page:
http://en.wikibooks.org/wiki/GLPK/Troubleshooting#Continuous_solution_to_mixed-integer_problem
There is also quite a lot of info on java too:
http://en.wikibooks.org/wiki/GLPK/Java
cheers, Robbie
(ps: Andrew: ill-formed email address as you suggested .. oops)
---
Robbie Morrison
PhD student -- policy-oriented energy system simulation
Technical University of Berlin (TU-Berlin), Germany
University email (redirected) : [email protected]
Webmail (preferred) : [email protected]
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