sc::BFGSUpdate(3) | Library Functions Manual | sc::BFGSUpdate(3) |
sc::BFGSUpdate - The DFPUpdate class is used to specify a Broyden, Fletcher, Goldfarb, and Shanno hessian update scheme.
#include <update.h>
Inherits sc::DFPUpdate.
BFGSUpdate (StateIn &)
BFGSUpdate (const Ref< KeyVal > &)
void save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the same order
that the StateIn CTOR initializes them. void update (const
RefSymmSCMatrix &ihessian, const Ref< Function
> &, const RefSCVector &xnew, const RefSCVector
&gnew)
Public Member Functions inherited from sc::DFPUpdate
DFPUpdate (StateIn &)
DFPUpdate (const Ref< KeyVal > &)
The KeyVal constructor reads the following keywords: void
save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the same order
that the StateIn CTOR initializes them. void update (const
RefSymmSCMatrix &ihessian, const Ref< Function
> &, const RefSCVector &xnew, const RefSCVector
&gnew)
void apply_transform (const Ref< NonlinearTransform
> &)
void set_inverse ()
Public Member Functions inherited from sc::HessianUpdate
HessianUpdate (StateIn &)
HessianUpdate (const Ref< KeyVal > &)
void save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the same order
that the StateIn CTOR initializes them.
Public Member Functions inherited from sc::SavableState
SavableState & operator= (const SavableState &)
void save_state (StateOut &)
Save the state of the object as specified by the StateOut object. void
save_object_state (StateOut &)
This can be used for saving state when the exact type of the object is known
for both the save and the restore. virtual void save_vbase_state
(StateOut &)
Save the virtual bases for the object.
Public Member Functions inherited from sc::DescribedClass
DescribedClass (const DescribedClass &)
DescribedClass & operator= (const DescribedClass
&)
ClassDesc * class_desc () const throw ()
This returns the unique pointer to the ClassDesc corresponding to the
given type_info object. const char * class_name () const
Return the name of the object's exact type. int class_version () const
Return the version of the class. virtual void print (std::ostream
&=ExEnv::out0()) const
Print the object.
Public Member Functions inherited from sc::RefCount
int lock_ptr () const
Lock this object. int unlock_ptr () const
Unlock this object. void use_locks (bool inVal)
start and stop using locks on this object refcount_t nreference ()
const
Return the reference count. refcount_t reference ()
Increment the reference count and return the new count. refcount_t
dereference ()
Decrement the reference count and return the new count. int managed ()
const
void unmanage ()
Turn off the reference counting mechanism for this object. int managed
() const
Return 1 if the object is managed. Otherwise return 0.
Public Member Functions inherited from sc::Identity
Identifier identifier ()
Return the Identifier for this argument.
Static Public Member Functions inherited from
sc::SavableState
static void save_state (SavableState *s, StateOut &)
static SavableState * restore_state (StateIn &si)
Restores objects saved with save_state. static SavableState *
key_restore_state (StateIn &si, const char *keyword)
Like restore_state, but keyword is used to override values while restoring.
static SavableState * dir_restore_state (StateIn
&si, const char *objectname, const char *keyword=0)
Protected Member Functions inherited from sc::SavableState
SavableState (const SavableState &)
SavableState (StateIn &)
Each derived class StateIn CTOR handles the restore corresponding to
calling save_object_state, save_vbase_state, and save_data_state listed
above.
Protected Member Functions inherited from sc::RefCount
RefCount (const RefCount &)
RefCount & operator= (const RefCount &)
Protected Attributes inherited from sc::DFPUpdate
RefSCVector xprev
RefSCVector gprev
Protected Attributes inherited from sc::HessianUpdate
int inverse_hessian_
The DFPUpdate class is used to specify a Broyden, Fletcher, Goldfarb, and Shanno hessian update scheme.
This hessian update method is the recommended method for use with QNewtonOpt objects.
Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them. This must be implemented by the derived class if the class has data.
Reimplemented from sc::SavableState.
Implements sc::HessianUpdate.
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