Getting variable constraint value

Question

How would I find the constraint value of a variable using SAT_INTEGER_PROGRAMMING given a feasible solution. Essentially solution_value() but for constraint.

Looked through documentation and nothing that helps with that above

watchdogs132 · Accepted Answer · 2023-03-08 18:41:17Z

1

Assuming you are using pywraplp, there is ComputeConstraintActivities which computes the sum of the linear terms of each constraint. Have a look at linear_programming.py for usage.

If you are using model_builder, then this should be followed.

answered Mar 8, 2023 at 18:41

watchdogs132

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2 Comments

Mona Over a year ago

Am using pywraplp. What i was wondering if I can get the variable value given a constraint. Not the sum of all constraint variables

Laurent Perron Over a year ago

Makes no sense. Variables have one solution value independently of constraints

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