How to declare a binary variable in a robust model?

Specific Domains Optimization (Mathematical)
3

A binary variable has implicit bounds of [0, 1].

However, for future reference, the syntax is

model = Model()
@variable(model, x, Bin, lower_bound = 0)
# or
@variable(model, y >= 0, Bin)

The difference is that @RaquelSantos is using the old version of JuMP, where the syntax is just @variable(model, y >= 0, Bin).

julia> using JuMP, JuMPeR

julia> model = RobustModel();
julia> @variable(model, x >= 0, Bin)
x

julia> A = 1:4
1:4

julia> @variable(model, y[A], Bin, lowerbound=0)
y[i] ∈ {0,1} ∀ i ∈ {1,2,3,4}
3 Likes