Global Output Structures

run can produce two types of output structures:

  • A global output structure. This structure contains information about the overall run from multiple starting points. Details follow.

  • Local solver output structures. The vector of GlobalOptimSolution objects contains one such structure in each element of the vector. For a description of this structure, see Output Structures in the Optimization Toolbox™ documentation, or the function reference pages for the local solvers: fmincon, fminunc, lsqcurvefit, or lsqnonlin.

Global Output Structure

FieldMeaning
funcCountTotal number of calls to user-supplied functions (objective or nonlinear constraint)
localSolverTotalNumber of local solver runs started
localSolverSuccessNumber of local solver runs that finished with a positive exit flag
localSolverIncompleteNumber of local solver runs that finished with a 0 exit flag
localSolverNoSolutionNumber of local solver runs that finished with a negative exit flag
messageGlobalSearch or MultiStart exit message

A positive exit flag from a local solver generally indicates a successful run. A negative exit flag indicates a failure. A 0 exit flag indicates that the solver stopped by exceeding the iteration or function evaluation limit. For more information, see Exit Flags and Exit Messages or Tolerances and Stopping Criteria in the Optimization Toolbox documentation.

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