`scipy.optimize._differentialevolution:DifferentialEvolutionSolver._accept_trial`

source: /scipy/optimize/_differentialevolution.py :1556

Signature

   def     _accept_trial (    self    ,    energy_trial    ,    feasible_trial    ,    cv_trial    ,    energy_orig    ,    feasible_orig    ,    cv_orig      )

Summary

Trial is accepted if: * it satisfies all constraints and provides a lower or equal objective function value, while both the compared solutions are feasible - or - * it is feasible while the original solution is infeasible, - or - * it is infeasible, but provides a lower or equal constraint violation for all constraint functions.

Extended Summary

This test corresponds to section III of Lampinen ^[1].

Parameters

energy_trial : float: Energy of the trial solution
feasible_trial : float: Feasibility of trial solution
cv_trial : array-like: Excess constraint violation for the trial solution
energy_orig : float: Energy of the original solution
feasible_orig : float: Feasibility of original solution
cv_orig : array-like: Excess constraint violation for the original solution

Returns

accepted : bool

Aliases

scipy.optimize._differentialevolution.DifferentialEvolutionSolver._accept_trial