discrete variables in MINLP
discrete variables in MINLP
Dear All,
I want to use MINLP solvers for solving my problem, but my discrete variables are not binary or integer variables,e.g (2.4, 3.6, etc).
How can I do that?
Best regards,
Soheil
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Re: discrete variables in MINLP
Soheil,
Special Ordered Set type 1 (SOS1) can be used to define discrete variables
that are not integer valued. SOS1 uses binary variables and continuous
variables to define discrete values.
You could also use an integer variable and multiply it by an appropriate
factor in your model. e.g., Y=1.2y, where Y does not need any integrality
requirements and y is integer. so if y=2 then Y= 2.4, if y = 3 Y= 3.6,
etc...
Regards, Andres Guerra
On Fri, 31 Oct 2008, soheil sadat hosseini wrote:
> > Dear All,
> > I want to use MINLP solvers for solving my problem, but my discrete
> > variables are not binary or integer variables,e.g (2.4, 3.6, etc).
> > How can I do that?
> >
> > Best regards,
> > Soheil
> >
>> > >
> >
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