Problem type

Flopt includes problem estimation mechanism, and provide an API for user to see the user defined problem type.

import flopt

x = flopt.Variable("x")
y = flopt.Variable("y")

prob = flopt.Problem()

prob += x + y
flopt.estimate_problem_type_info(prob)
>>> Problem
>>>   Name: None
>>>     Type         : Problem
>>>     sense        : Minimize
>>>     objective    : x+y
>>>     #constraints : 0
>>>     #variables   : 2 (Continuous 2)
>>>
>>> Problem components
>>>   Variable: Continuous
>>>   Objective: Linear
>>>   Constraint: Non
>>>
>>> Problem classes
>>>   --> lp
>>>   --> mip
>>>       ising
>>>   --> quadratic
>>>       permutation
>>>       blackbox
>>>       blackbox with interger variables
>>>   --> nonlinear
>>>   --> nonlinear with integer variables

Flopt characterize the problem with (variable type, objective, constraints). These element are defined https://github.com/nariaki3551/flopt/blob/373fd556266404c3e0e92429ea3d2934cf6c7b92/flopt/constants.py#L46-L104 . In addition, optimization problem types are defined in https://github.com/nariaki3551/flopt/blob/373fd556266404c3e0e92429ea3d2934cf6c7b92/flopt/solvers/auto_search/selector.py#L51-L109 .