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FICO's avatar
FICO
Community Manager
6 years ago

xpress variable type

Hi, I set vartype=xp.binary when I create the xpress variables, but some of the results have values such as 0.13333, 0.36667, 0.5.

I found that this was caused by one of the constraints. When I disabled most of the constraints, the values are all binary. Then, I enabled the constraint one by one and found one set of constraints that is causing the value to be non-binary.

Has anyone observed this before? Any suggestion on how to enforce the variable value to be binary?

Thanks!

fico® xpress

1 Reply

  • FICO's avatar
    FICO
    Community Manager
    6 years ago

    Hello,

    this should not happen and I can't create an example to reproduce that. Can you confirm that: 1) the solution comes from a call to p.getSolution(), where p is the problem object; 2) the problem is feasible when adding that set of constraints?

    Thanks,

    Pietro

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