Re: [Help-glpk] question about GLP_BV

[Heinrich Schuchardt]

Hello Onor,

glp_simplex is the LP solver so you cannot expect integer results.

You have to use glp_intopt to get integer results..

Best regards

Heinrich

https://www.xypron.de



On 21.05.2014 05:13, Aaron wrote:
> Hello,
>
> I have a very strange problem.
>
> I solve an LP problem. We set the each column of object function to the
> GLP_BV. glp_set_col_kind(prob, i, GLP_BV), Since the vaules of my variables
> are integer 0 or 1;
>
> Then I use the glp_simplex(prob, NULL) to solve my LP problem. And I get my
> result.
>
> The question is that most vaules of my result are 1 or 0, but some values are
> decimal between 0 and 1, like 0.333333, 0.24444444 and so on.
>
> I don't know why there are some decimal in my result, since i have set
> glp_set_col_kind to GLP_BV?
> And if i just want the value of my result to be 0 or 1, how should I do?
>
> Thank you
>
> Onor
>
>
> _______________________________________________
> Help-glpk mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/help-glpk