Re: [Help-glpk] Binary variable with fractional value

[caseyh]

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 <address@hidden>:

> ------------------------------------------------------------
> To:          "\"Benjamin" D?ring" <address@hidden>
> Subject:      Re: [Help-glpk] Binary variable with fractional value
> Message-ID:  <address@hidden>
> From:         Andrew Makhorin <address@hidden>
> Date:         Mon, 26 Sep 2011 18:31:38 +0400
> ------------------------------------------------------------
>
> > > 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) : address@hidden
> Webmail (preferred)           : address@hidden
> [from Webmail client]
>
>
>
>
>
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