No answer of this message yet. Please help. ---------- Forwarded message ---------- From: Sajal Mukhopadhyay <[email protected]> Date: Mon, Mar 5, 2012 at 12:20 AM Subject: Re: [Help-glpk] glpk help To: Andrew Makhorin <[email protected]>
I have seen the gmpl.pdf and the problem is solved to some extent. Thank you again. Now I am facing another problem. I am trying to solve multiobjective solid transportation problem. I am using some goal programming technique. In this case what I have to do is to find out optimal solution of the first objective and based on the x[i,j,k] found in this case we have to find out the value of the other objective function. Next we have to find out the optimal solution of the next objective and based on x[i,j,k] found we have find out the value of the other objectives and so on. Now my problem is say I have found the values of the x[i,j,k] for finding the optimal value of the first objective. Now I have to calculate the value of the other objectives based on this x[i,j,k]. How can I do that in the same program. Say my program name is glp1.mod. My question is can I do that in the same program or I have to write a separate program. May be my problem is explained properly. Please help me again. On Thu, Feb 23, 2012 at 5:37 PM, Andrew Makhorin <[email protected]> wrote: > > I am new to glpk. I want to represent c[i,j,k] for some > > transportation problem concerning the fact that the depot i serving > > customer j with vehicle k. How can i represent the table in this > > environment. All code example, so far found by me, dealing with only > > c[i,j]. Please help me. > > Please see the MathProg language reference (doc/gmpl.pdf) and example > models (examples/*.mod) included in the glpk distribution. In > particular, see the example model train.mod; it includes > multidemensional parameters and variables. > > In the future please use a more descriptive subject line for your > messages. Thanks. > > -- Sajal Mukhopadhyay, Asst. Professor, NIT,Durgapur, Durgapur-9. -- Sajal Mukhopadhyay, Asst. Professor, NIT,Durgapur, Durgapur-9.
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