Dear,
I am Korean and University student.
I begin to learn how to use GAMS by youtube and tutorial.
I have the precise mathematical model and I apply this model to my original problem.
I understand the formulas thoroughly, but I can’t express something that I can’t understand. (My English is not good)
If you show me this example how to code, It would be very appreciated.
GAMS391.txt (1.35 KB)
Sets node /n1*n5/
Sets time /t1*t20/;
Alias (node, i, j, k);
Alias (time, t);
Parameters Turn(time) ;
Turn(time)=ord(time) ;
Parameters f(k) /n1 40, n2 0, n3 20, n4 0, n5 0 / ;
Parameters v(k) /n1 40, n2 10, n3 20, n4 10, n5 60 /;
Table c(Node, Node)
n1 n2 n3 n4 n5
n1 0 1 0 0 0
n2 4 0 0 2 3
n3 0 0 0 2 0
n4 0 2 3 0 1
n5 0 3 0 1 0 ;
Table r(Node, Node)
n1 n2 n3 n4 n5
n1 0 1 0 0 0
n2 1 0 0 1 1
n3 0 0 0 1 0
n4 0 1 1 0 4
n5 0 1 0 4 0 ;
Scalars N /5/ ;
Scalars M /20/;
Variables
Z
O(t)
x(i, node, j)
p(node, time) ;
Positive Variables x;
Equations Eq1, Eq2(t), Eq3(k), Eq4(k,t), Eq5(i,j,t), Eq6(k,t);
Eq1… Z =e= sum(t, (M+1-Turn(t))*O(t));
??? below error with dimensions
Eq2(t)… O(t) =e= sum(i$(ord(i):
Dear,
I am Korean and University student.
I begin to learn how to use GAMS by youtube and tutorial.
I have the precise mathematical model and I apply this model to my original problem.
I understand the formulas thoroughly, but I can’t express something that I can’t understand. (My English is not good)
If you show me this example how to code, It would be very appreciated.
I really want to learn GAMS, and help me.
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With kindly regards!
Andre Savitsky
E-mail:andresavit@yandex.ru
andre_savit@yahoo.com
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Last time, I attach the file, name is “model.png”, it is a precise model.
I want you to check the file “model” and advise me how to model this mathematical formula.
I’m also struck at Eq2 and trying to revise the code correctly.
Thank you for your answers and continue your interest in my code, please.
code.gms (1.57 KB)