A problem with JuMP variable defined

mahon · April 12, 2022, 3:59am

i want constraint my variable Pg , how can i do?

hdavid16 · April 12, 2022, 4:22am

You currently can’t do this. You need to use indexed definitions or set the bounds after creating the variable

github.com/jump-dev/JuMP.jl

Vectorized bounds on variables

opened 06:06AM - 08 Apr 22 UTC

hdavid16

Category: Modeling Category: Containers

It would be nice to be able to do the following to set bounds on variable arrays… (or other variable containers): ```julia @variable(m, [1,2] .<= x[1:2] .<= [3,4]) ``` This currently throws a `LoadError` indicating that `<=` should be used instead. Using `<=` instead of the vectorized inequality instructs the user with "Instead of `@variable(model, x[1:2] >= lb)`, do `@variable(model, x[i=1:2] >= lb[i])`. Alternatively, create the variable without bounds, then call `set_lower_bound.(x, lb)`." This makes perfect sense. Would it make sense to add the capability of passing arrays as variable bounds to generate bounded variables on the fly?

ccoffrin · April 13, 2022, 6:06pm

Side note: It looks like you are developing an AC OPF model. These reference implementations may be of interest,