display section

GAMS
1

hello,
I introduced a binary variable x(i,j) .and i multiply this into an equation.example :

cost=e=x(i,j)*f(i,j)*price


and in the display section if I write display " cost.L " it gives me 0 .and if I write " display cost.up " it gives "+INF " .what should i do to display the actual value of the cost variable??

thank you very much

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2

Hi Mohamad

The right option is “.L”. The .up value is the upper limit, the .lo value is the lower limit, the .m is the marginal value, and .L means the “level”, that is, the current value of the variable at the solution, which might be zero…if it makes no sense, then you might check the model.

Regards





MC. José Miguel Quesada Pérez
Departamento de Ingeniería Industrial

Tecnológico de Monterrey, Campus Querétaro

52 (442) 238 3100 Ext: 6349

Fax: (442) 238 32 70

Enlace intercampus: 8 0 776 6349


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From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Mohamad Dehghani
Sent: jueves, 14 de marzo de 2013 05:52 a.m.
To: gamsworld@googlegroups.com
Subject: display section



hello,

I introduced a binary variable x(i,j) .and i multiply this into an equation.example :



cost=e=x(i,j)*f(i,j)*price





and in the display section if I write display " cost.L " it gives me 0 .and if I write " display cost.up " it gives "+INF " .what should i do to display the actual value of the cost variable??



thank you very much

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