Re: Octave-forge: you get what you pay for

[Vic Norton]

That's the way lp is supposed to work, Rafael. Thanks for the output. 
Maybe my note will encourage someone to throw lp out of Octave-forge.

Regards,

Vic

At 11:27 AM +0200 6/16/05, Rafael Laboissiere wrote:
> * John W. Eaton <address@hidden> [2005-06-15 11:41]:
>
> >  On 15-Jun-2005, Andrey Romanenko wrote:
> >
> >  | Maybe we should
> >  | consider creating an an Octave->lp_solve interface to make it automatic.
> >
> >  Octave (2.9.x) now includes an interface to glpk which seems to have
> >  no touble solving the example problem that was posted.  So I think
> >  things are improving and the lp in Octave forge could be considered
> >  obsolete soon.
>
> Indeed, I get the following results for the problem presented by Vic
> Norton running Octave 2.9.2:
>
> octave-2.9.2:1> A6 = [
> >       1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
> >       0.2 0.5 0.3 0.3 0.3 0.6 0.4 0.1 0.1
> >       0.3 0.4 0.2 0.4 0.3 0.3 0.5 0.3 0.1
> >       0.5 0.1 0.5 0.3 0.4 0.1 0.1 0.6 0.8
> >     ];
> octave-2.9.2:2> B6 = [1.0; 0.3; 0.3; 0.4];
> octave-2.9.2:3> F6 = [4.1 4.3 5.8 6.0 7.6 7.5 7.3 6.9 7.3];
> octave-2.9.2:4> LB6 = zeros(9, 1);
> octave-2.9.2:5> UB6 = ones(9, 1)*Inf;
> octave-2.9.2:6> sol6 = glpk (F6, A6, B6, LB6, UB6, 'SSSS')
> sol6 =
>
>   0.50000
>   0.25000
>   0.25000
>   0.00000
>   0.00000
>   0.00000
>   0.00000
>   0.00000
>   0.00000
>
>
> --
> Rafael




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