conditional operator

[Archiver]

Reply-to: gamsworld@googlegroups.com


Hi Guys,
I tried following $ equation and it compiled perfectly

noback(i).. sum(j$(seq(j) gt 3),x(i,j)) =e= 0

Then i wanted to expend this to include one more set k (summing over k
as well on RHS) and changing the condition a bit as below -

noback(i).. sum((j$(seq(j)<=seq(i)),k),x(i,j,k)) =e= 0;

I get following error messages -

8 ')' expected
37 '=l=' or '=e=' or '=g=' operator expected
148 Dimension different - The symbol is referenced with more/less
indices as declared
409 Unrecognizable item - skip to find a new statement
looking for a ';' or a key word to get started again

**** 4 ERROR(S) 0 WARNING(S)
All symbols and notations are define before cimpiling,
Not able to get this thru, please help if someone can,

thanks
Anupam
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to gamsworld@googlegroups.com
To unsubscribe from this group, send email to gamsworld+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/gamsworld?hl=en
-~----------~----~----~----~------~----~------~--~---

[Archiver]

Thanks a lot Arne,
yes i was wrong there,
Now it is working,
thanks again,

regards,
Anupam

On Dec 29, 5:28 pm, "Arne Stolbjerg Drud" wrote:
> > Hi Anupam
> >
> > You need all the sets ín the sum before the condition, i.e.
> >
> > noback(i).. sum((j,k)$(seq(j) >
> > As an alternative, you can use two sums as in
> >
> > noback(i).. sum(j$(seq(j) >
> > Good luck
> >
> > Arne
> >
> > ----------------------------------
> > Arne Stolbjerg Drud
> > ARKI Consulting & Development A/S
> > Bagsvaerdvej 246A, DK-2880 Bagsvaerd, Denmark
> > Phone: (+45) 44 49 03 23, Fax: (+45) 44 49 03 33, email: ad...@arki.dk
> >
> > -----Oprindelig meddelelse-----
> > Fra: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] PÃ¥ vegne
> > af Anupam
> > Sendt: 29. december 2008 12:03
> > Til: gamsworld
> > Cc: anupa...@infosys.com; anupam...@rediffmail.com
> > Emne: conditional operator
> >
> > Hi Guys,
> > I tried following $ equation and it compiled perfectly
> >
> > noback(i).. sum(j$(seq(j) gt 3),x(i,j)) =e= 0
> >
> > Then i wanted to expend this to include one more set k (summing over k
> > as well on RHS) and changing the condition a bit as below -
> >
> > noback(i).. sum((j$(seq(j) >
> > I get following error messages -
> >
> > 8 ')' expected
> > 37 '=l=' or '=e=' or '=g=' operator expected
> > 148 Dimension different - The symbol is referenced with more/less
> > indices as declared
> > 409 Unrecognizable item - skip to find a new statement
> > looking for a ';' or a key word to get started again
> >
> > **** 4 ERROR(S) 0 WARNING(S)
> > All symbols and notations are define before cimpiling,
> > Not able to get this thru, please help if someone can,
> >
> > thanks
> > Anupam
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to gamsworld@googlegroups.com
To unsubscribe from this group, send email to gamsworld+unsubscribe@googlegroups.com
For more options, visit this group at http://groups.google.com/group/gamsworld?hl=en
-~----------~----~----~----~------~----~------~--~---