Hi,

I am learning to work using GAMS and I have licensed software comprising of base and path solvers.

In the process of learning, I formulated a small program and trying to simulate that if co(i,j) increase by 1.25 times, what is the value of total?

When I run this program, I got the changed value of c(i,j) but no change in value of total. I want to identify the mistake but not able to; please guide.

$title Exercise of sum

Set i /punjab, haryana, UP, Rajasthan/

j /wheat, barley, maize/;

Table co(i,j) quantity transported

wheat barley maize

punjab 25 15 10

haryana 20 25 15

UP 30 24 22

Rajasthan 24 23 18;

Parameter

totalo;

Totalo = sum((i,j),co(i,j));

Variables

total

c(i,j);

Equation

Equa;

Equa… total =e= sum((i,j),c(i,j));

total.L = totalo;

c.L(i,j) = co(i,j);

*simmulate

Parameter

c1(i,j);

c1(i,j) = co(i,j)*1.25;

c.l(i,j) = c1(i,j);

co(i,j) = c1(i,j);

Display total.l, c.l;