> Sorry for the botchup. I did some code juggling and posted incorrect > code. I have posted the modified code at the end. I have upgraded to > glpk 4.41. I actually want x1, x2 ,x3 ,x4 to take only binary values 0 > and 1. I have used glp_set_col_kind function to set the column kind to > GLP_IV > my foobar.lp(glp_write_lp function #39;s output) is as follows
> I get x1 , x2, x3 and x4 all zero #39;s > I think The right solution is x1 can #39;t be one and one of other > 3 variables should be 1. I don #39;t know if i am doing something > silly. > Is it okay to have x1, x2 , x3, x4 to be int type? Are there any > special type that i should use. To solve mip you need to call glp_integer following a call to glp_simplex. Besides, to obtain mip solution components you need to use glp_get_mip_col rather than glp_get_col_prim. For more details please consult the glpk reference manual (section "Mixed integer programming routines") included in the distribution. _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
