hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

nurseproblem.gms (2.53 KB)

nurse problem.~gm (2.43 KB)

hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

nurseproblem.gms (2.53 KB)

nurse problem.~gm (2.43 KB)

Hi Soheil

Here some first help:

set

j, jj /A*C/
should be
set j /A,B,C/
(you canâ€™t use A*B, only sequences of numbers; you need to use â€œaliasâ€ to define an alias:

alias(j,jj);

equ1(k)… sum(k,x(i,j,k))=G=M(i,j);

equation eq1 is defined for every element of k, but then you sum over k itself. Furthermore, you use the sets i and j in the equation, but these are not part of the equation definition.

This would work:

equ1(i,j)… sum(k,x(i,j,k))=G=M(i,j);

Cheers

Renger

From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Soheil Zandi

Sent: Saturday, January 3, 2015 22:31

To: gamsworld@googlegroups.com

Subject: modeling a nurse scheduling problem i cant solve erorrs please help me

hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

thnx

dear Renger

but after first revise i can not model at equation for i,j,k .,i mean need a ‘‘relaton between i,j or k’’ or not

and then i see 87 error after i press F9 key and i can not solve that errors

please give more information after read nurse problem assumption and sets and parameters and you can help me

regards

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

Dear Renger

I’m working on an OR project, a MIP/LP nurse scheduling & assignment problem for a healthcare project.

I would like to ask if you could help me with coding so that I can pay you. I have started with coding bu need an expert to help.

Thanks & hope to hear from you soon; and I will contact you asap.

On Monday, January 5, 2015 at 3:59:06 AM UTC-5, Renger van Nieuwkoop wrote:

Hi Soheil

Here some first help:

set

j, jj /A*C/
should be
set j /A,B,C/
(you canâ€™t use A*B, only sequences of numbers; you need to use â€œaliasâ€ to define an alias:

alias(j,jj);

equ1(k)… sum(k,x(i,j,k))=G=M(i,j);

equation eq1 is defined for every element of k, but then you sum over k itself. Furthermore, you use the sets i and j in the equation, but these are not part of the equation definition.

This would work:

equ1(i,j)… sum(k,x(i,j,k))=G=M(i,j);

Cheers

Renger

From: gams...@googlegroups.com [mailto:gams...@googlegroups.com] On Behalf Of Soheil Zandi

Sent: Saturday, January 3, 2015 22:31

To: gams...@googlegroups.com

Subject: modeling a nurse scheduling problem i cant solve erorrs please help me

hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+...@googlegroups.com.

To post to this group, send email to gams...@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

Hi Ike

It depends on what kind of project it is, on how much help you want (hours) and how much you can payâ€¦

If you send me this information, I will consider it.

Cheers

Renger

Von: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] Im Auftrag von Ike Cook

Gesendet: Thursday, March 5, 2015 4:26 AM

An: gamsworld@googlegroups.com

Betreff: Re: modeling a nurse scheduling problem i cant solve erorrs please help me

Dear Renger

I’m working on an OR project, a MIP/LP nurse scheduling & assignment problem for a healthcare project.

I would like to ask if you could help me with coding so that I can pay you. I have started with coding bu need an expert to help.

Thanks & hope to hear from you soon; and I will contact you asap.

On Monday, January 5, 2015 at 3:59:06 AM UTC-5, Renger van Nieuwkoop wrote:

Hi Soheil

Here some first help:

set

j, jj /A*C/
should be
set j /A,B,C/
(you canâ€™t use A*B, only sequences of numbers; you need to use â€œaliasâ€ to define an alias:

alias(j,jj);

equ1(k)… sum(k,x(i,j,k))=G=M(i,j);

equation eq1 is defined for every element of k, but then you sum over k itself. Furthermore, you use the sets i and j in the equation, but these are not part of the equation definition.

This would work:

equ1(i,j)… sum(k,x(i,j,k))=G=M(i,j);

Cheers

Renger

From: gams...@googlegroups.com [mailto:gams...@googlegroups.com] On Behalf Of Soheil Zandi

Sent: Saturday, January 3, 2015 22:31

To: gams...@googlegroups.com

Subject: modeling a nurse scheduling problem i cant solve erorrs please help me

hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+...@googlegroups.com.

To post to this group, send email to gams...@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at http://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.

Hi Soheil,

i’m new on gams program. And i try to my solve nurse scheduling problem for my project.

i read this topic, if you solve your problem, can you send me your gms file.

i need urgent help. if you help me, i will thankful you. Thanks…

3 Ocak 2015 Cumartesi 23:31:19 UTC+2 tarihinde Soheil Zandi yazdÄ±:

hello everyone can you help me solve problem

i can’t resolve errors in gams model

i attached file

please help me it’s so important for me

–

To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.

To post to this group, send email to gamsworld@googlegroups.com.

Visit this group at https://groups.google.com/group/gamsworld.

For more options, visit https://groups.google.com/d/optout.