Re: [Help-glpk] New statements (solve; printf, if, for, etc.)

[Marcos Roberto Silva]

Dear Richard,
I tried the expression:

printf{i in I, j in J, k in K}: "%d to %d via %d \n", if x[i,j,k] then 
i,j,k;

and the output was the same. I can to filter the results to print only 
when x[i,j,k] = 1 (x binary), but doesn't work.

Anyway, thanks for your help.

Marcos Roberto Silva


Richard Prescott wrote:

> I didn't try yet 4.6 but I am pretty sure that
>
> print("...\n");
> print{i in I, j in J, k in L: x[i,j,k]} ("%d to %d via %d", i, j, k);
>
> is closer to your wish.
>
>
> On Thu, 5 Aug 2004, Marcos Roberto Silva wrote:
>
> > Hello list,
> >
> > I am learning and testing the new statements of the 4.6 version, and 
> > in my test I was not able to print i , j and k _only_ if x[i,j,k] =1.
> >
> > The code used was:
> >
> > printf("\nFlow Assignment: ");
> > for {i in I}
> > {
> >       for {j in J}
> >       {
> >               for {k in K} printf "\nThe flow from %d to %d is via 
> > hub %d.", if x[i,j,k] then i,j,k;
> >       }
> > }
> >
> >
> > With this code, the output print  all the cases.
> >
> > What's wrong?
> >
> > Thanks.
> >
> > Regards,
> >
> > Marcos Roberto Silva
>
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>
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