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gams:getting_the_index_position_of_the_largest_element_of_a_set

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gams:getting_the_index_position_of_the_largest_element_of_a_set [2020/05/25 17:08]
Lutz Westermann Improve problem description and code formatting
gams:getting_the_index_position_of_the_largest_element_of_a_set [2020/05/25 17:14] (current)
Lutz Westermann add singleton set variant
Line 38: Line 38:
 i3                     YES i3                     YES
 i4         YES i4         YES
 +</​code>​
 +
 +In case just one element is wanted and not all index positions with the maximum number, one can use a [[https://​www.gams.com/​latest/​docs/​UG_SetDefinition.html#​UG_SetDefinition_SingletonSets|Singleton Set]] like this:
 +
 +<​code>​
 +Singleton Set posmaxS(i,​j);​
 +Option strictSingleton=0;​
 +posmaxS(i,​j) = a(i,j) = maxa;
 +display posmaxS;
 +</​code>​
 +
 +<​code>​
 +----     18 SET posmaxS  ​
 +
 +            j3
 +
 +i3         YES
 </​code>​ </​code>​
  
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