Hello everyone
I am writing a model in Gams in which I need use one of the model variables as the summation bounds
actually i want to write the below equation
sum(t$(t>=s(i)), y(i,t))
where s(i) and y(i,t) are variables
could anyone help me ???
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Hi
You need to specify “i” first, Then I guess “ord” would help.
Date: Wed, 22 Jul 2015 07:04:39 -0700
From: s.javan89@gmail.com
To: gamsworld@googlegroups.com
Subject: variable bounds for summation
Hello everyone
I am writing a model in Gams in which I need use one of the model variables as the summation bounds
actually i want to write the below equation
sum(t$(t>=s(i)), y(i,t))
where s(i) and y(i,t) are variables
could anyone help me ???
–
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How can index t can be greater than variable s(i) ? You can not compare index with variable.
I think you want to say add in terms of index “t” only when index “t” is greater than index “i” if yes then you can use
EQUA1(i)…SUM(t$(ORD(t)>=(ORD(i)) y(i,t)…
Regards,
Owais Nooruddin
+358465700556
2015-07-22 17:04 GMT+03:00 Shima Javan :
Hello everyone
I am writing a model in Gams in which I need use one of the model variables as the summation bounds
actually i want to write the below equation
sum(t$(t>=s(i)), y(i,t))
where s(i) and y(i,t) are variables
could anyone help me ???
To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.
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