About printQuality function

回答済み

Valeria Ríos

2020年04月22日 04:19

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I don't understand following result of model.printQuality():

Solution quality statistics for model Unnamed :
  Maximum violation:
    Bound       : 0.00000000e+00
    Constraint  : 1.44636046e-10 (p23[86])
    Integrality : 0.00000000e+00

Knowing that p23 [86] is a equality constraint, does it imply that constraint p23 [86] is being violated and both sides differ at 1.44636046e-10 or not?

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  Simranjit Kaur

  • Gurobi Staff

  2025年06月23日 03:14 編集済み

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
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  Eli Towle

  • Gurobi Staff

  2020年04月22日 20:55

  Hi Valeria,

  Yes, this means that the difference between the LHS and RHS of constraint p23[86] is ~1.45e-10. This is well within the default feasibility tolerance used by Gurobi. This is the maximum constraint violation, meaning all other constraints have violations no greater than this.

  Thanks,

  Eli

   

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  Valeria Ríos

  2020年05月08日 23:00

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  Thanks a lot for your response!

  
  Regards,
  Valeria.

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