Hi there,
I'm working on VRP with time windows and the model that i write on Gams makes an error "Uncontrolled set entered as constant". So I need help urgently. Could anybody tell me reason of the problem? Model is as follows:

sets i customers/1,2,3,4,5,6,7/;
k vehicles/1,2,3,4/
Alias (i,j)


Table g(i,j) The total transportation and service time
0 1 2 3 4 5 6 7
0 100000 13.71 13.12 11.20 9.95 15.65 13.96 12.34
1 13.36 100000 0.97 2.47 3.40 2.56 0.89 1.52
2 12.82 1.02 100000 2.02 2.73 3.24 1.53 1.07
3 11.00 2.62 2.12 100000 3.85 4.27 2.78 1.21
4 9.55 3.35 2.63 3.65 100000 5.56 4.16 3.25
5 15.45 2.71 3.34 4.27 5.76 100000 2.02 3.89
6 13.76 1.04 1.63 2.78 4.36 2.02 100000 2.40
7 12.09 1.62 1.12 1.16 3.40 3.84 2.35 100000



binary variables X(i,j,k);
positive variables s(j,k);

time to start service at customer i (i,j) $((ord(i) ne (ord(j) and (ord(j) ne 1))))..s(i,k)-s(j,k)+sum(k,X(i,j,k))*10000=l=10000-g(i,j);

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when you are mentioning S(i,k), its not sumed, neither mentioned in the beginning thats why ts saying that its uncontrolled. o you need to summ them on k as well.

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On Monday, 27 July 2015 23:01:10 UTC+5:30, forogh.t...@gmail.com wrote:

On Monday, October 2, 2006 at 8:47:45 AM UTC+3:30, Kumar wrote:

Hi alI

We have GAMS & CPLEX software and want to solve VRP problem.Could
anybody send me any type of VRP problem.

Thanks

hi, I have a VRP problem, could I send you?email?

Hello, Can you send me VRP sample code of GAMS software. I am at learning stage of GAMs, it will help me a lot and coding.

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hocam aynı projeyi ben de yapıyorum da şuan bi şansımı denemek istedim. Eğer duruyorsa gams kodunu gönderebilir misin ?

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forogh.t...@gmail.com於 2015年7月27日星期一 UTC-5下午12時31分10秒寫道：

On Monday, October 2, 2006 at 8:47:45 AM UTC+3:30, Kumar wrote:

Hi alI

We have GAMS & CPLEX software and want to solve VRP problem.Could
anybody send me any type of VRP problem.

Thanks

hi, I have a VRP problem, could I send you?email?

Hi, I am also working on a VRP problem. Could you please share your code with me? I would be very grateful if you'd like to help me.

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Am Montag, 2. Oktober 2006 07:17:45 UTC+2 schrieb Kumar:
Hi
can someone send me the VRP GAMS Code? I just know the basics of GAMS so I would be very grateful if someone could help me.

Thank you :)

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