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```julia
using JSON
using JuMP,AmplNLWriter
data={"P":1.0,"I":4,"J":2,"Bandwidth":[1.25,1.25,1.25,1.25],"Noise":[5.1E-8,9.65714E-8,7.6164E-8,2.33161E-8],"ell":[45,55]}
data=JSON.parse(data)
P…
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Hello,
I run the example of newsvendor problem from this page:
http://pyomocontrib-simplemodel.readthedocs.io/en/latest/newsvendor.html#simplemodel-formulation
But the results are not binary, h…
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I am trying AmplNKWriter with Knitro. The code is working reasonably fast with JuMP+Knitro (Knitro is called within seconds, problem is solved in around 300 sec), however when AmplNLWriter is used, I …
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If I have a nonlinear model in which all of the binary variables are fixed, it should be recognized as NLP rather than MINLP by the writer.
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@ccoffrin @kaarthiksundar
I will assume that we know the constant offset will be ignored in Gurobi/CPLEX.
- The MPB method getobjgap() will return the gap from solver (printed in solver log), …
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At the current status integer programming support is limited. The integer part of the decision vector can be passed as an argument to algorithms and the ``evolve()`` takes care to apply different oper…
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Just ran @timholy PR on Coverage (thanks, Tim!) and inspecting the `.cov` files, I see the following spots where our coverage could improve:
- [ ] `copy(::Model)` with nonempty `nlpdata`
- [ ] changin…
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Summary: When I use SCIP.jl to pass a MINLP JuMP model to SCIP, the solve complains the initial point is infeasible. When I use AmplNLWriter to send the same model to SCIP, it correctly classifies the…