Assign elemet of set to "NO"

GAMS
1

Hello, everyone!

there is a set defined as:

set i /0*10/;
i(“9”)=no;


there is a error:
Assigning to this set is NOT allowed. The set may have been
used in a domain definition or is a predefined/readonly set.

how to set No. 9 elemet “NO”?

Regards,

LUO

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2

Your question is not clear why you want to set i(9)=no.
Based on my guess, please refer to the following codes:

set i /0*10/;
set j(i);
j(i)=yes;
j(i)$(ord(i)=10)=no;
display i, j;

Marshal





On Apr 2, 3:09 am, xiaochuan luo wrote:

Hello, everyone!

there is a set defined as:

set i /0*10/;
i(“9”)=no;

there is a error:
Assigning to this set is NOT allowed. The set may have been
used in a domain definition or is a predefined/readonly set.

how to set No. 9 elemet “NO”?

Regards,

LUO

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