EndCriteria Class Reference

#include <ql/Optimization/criteria.hpp>

List of all members.


Detailed Description

Criteria to end optimization process.


Public Types

enum  Type { none, maxIter, statPt, statGd }

Public Member Functions

 EndCriteria ()
 default constructor
 EndCriteria (Size maxIteration, Real epsilon)
 initialization constructor
void setPositiveOptimization (bool)
bool operator() (Size iteration, Real fold, Real normgold, Real fnew, Real normgnew, Real)
Type criteria () const
 return the end criteria type
bool checkIterationNumber (Size iteration)
bool checkStationaryValue (Real fold, Real fnew)
bool checkAccuracyValue (Real f)
bool checkStationaryGradientNorm (Real normDiff)
bool checkAccuracyGradientNorm (Real norm)

Protected Attributes

Size maxIteration_
 Maximum number of iterations.
Real functionEpsilon_
 function and gradient epsilons
Real gradientEpsilon_
Size maxIterStatPt_
 Maximun number of iterations in stationary state.
Size statState_
Type endCriteria_
bool positiveOptimization_


Member Function Documentation

bool operator() ( Size  iteration,
Real  fold,
Real  normgold,
Real  fnew,
Real  normgnew,
Real   
)

test if the number of iteration is not too big and if we don't raise a stationary point