ApproximationInterface Class Reference

approximations to simulation-based results. More...

Inheritance diagram for ApproximationInterface:

List of all members.

Public Member Functions
	ApproximationInterface (ProblemDescDB &problem_db, const Variables &actual_model_vars, const size_t &num_fns)
	primary constructor
	ApproximationInterface (const String &approx_type, const short &approx_order, const Variables &actual_model_vars, const size_t &num_fns)
	alternate constructor for instantiations on the fly
	~ApproximationInterface ()
	destructor
Protected Member Functions
void	map (const Variables &vars, const ActiveSet &set, Response &response, const bool asynch_flag=false)
	the variables to the responses using functionSurfaces
int	minimum_samples (bool constraint_flag) const
	functionSurfaces
int	recommended_samples (bool constraint_flag) const
	functionSurfaces
void	approximation_function_indices (const IntSet &approx_fn_indices)
	set the (currently active) approximation function index set
void	update_approximation (const Variables &vars, const Response &response)
void	update_approximation (const VariablesArray &vars_array, const ResponseArray &resp_array)
void	append_approximation (const Variables &vars, const Response &response)
void	append_approximation (const VariablesArray &vars_array, const ResponseArray &resp_array)
void	build_approximation (const RealVector &lower_bnds, const RealVector &upper_bnds)
void	clear_current ()
	clears current data from an approximation interface
void	clear_all ()
	clears all data from an approximation interface
bool	anchor () const
	queries the presence of an anchorPoint within an approximation interface
const SurrogateDataPoint &	anchor_point () const
	returns the anchorPoint used within an approximation interface
Array< Approximation > &	approximations ()
	retrieve the Approximations within an ApproximationInterface
const RealVectorArray &	approximation_coefficients ()
	within an ApproximationInterface
void	approximation_coefficients (const RealVectorArray &approx_coeffs)
	within an ApproximationInterface
void	print_coefficients (ostream &s, size_t index) const
	Approximation instance within an ApproximationInterface.
const RealVector &	approximation_variances (const RealVector &c_vars)
	within an ApproximationInterface
const List< SurrogateDataPoint > &	approximation_data (size_t index)
	within an ApproximationInterface
const ResponseArray &	synch ()
	recovers data from a series of asynchronous evaluations (blocking)
const IntResponseMap &	synch_nowait ()
	recovers data from a series of asynchronous evaluations (nonblocking)
Private Attributes
IntSet	approxFnIndices
	response function subset that is approximated
Array< Approximation >	functionSurfaces
	list of approximations, one per response function
RealVectorArray	functionSurfaceCoeffs
	response function
RealVector	functionSurfaceVariances
	vector of approximation variances, one value per response function
List< SurrogateDataPoint >	functionSurfaceDataPoints
	for a particular response function
bool	graph3DFlag
	controls 3D graphics of approximation surfaces
StringArray	diag_list
	List of diagnostic metrics.
Variables	actualModelVars
	among differing variable views
IntResponseMap	beforeSynchResponseMap
	but asynchronous virtual functions are supported through bookkeeping).

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Detailed Description

approximations to simulation-based results.

ApproximationInterface provides an interface class for building a set of global/local/multipoint approximations and performing approximate function evaluations using them. It contains a list of Approximation objects, one for each response function.

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Member Function Documentation

void update_approximation	(	const Variables &	vars,
		const Response &	response
	)			[protected, virtual]

This function populates/replaces each Approximation::anchorPoint with the incoming variables/response data point.

Reimplemented from Interface.

void update_approximation	(	const VariablesArray &	vars_array,
		const ResponseArray &	resp_array
	)			[protected, virtual]

This function populates/replaces each Approximation::currentPoints with the incoming variables/response arrays.

Reimplemented from Interface.

void append_approximation	(	const Variables &	vars,
		const Response &	response
	)			[protected, virtual]

This function appends to each Approximation::currentPoints with one incoming variables/response data point.

Reimplemented from Interface.

void append_approximation	(	const VariablesArray &	vars_array,
		const ResponseArray &	resp_array
	)			[protected, virtual]

This function appends to each Approximation::currentPoints with multiple incoming variables/response data points.

Reimplemented from Interface.

void build_approximation	(	const RealVector &	lower_bnds,
		const RealVector &	upper_bnds
	)			[protected, virtual]

This function finds the coefficients for each Approximation based on the data passed through update_approximation() calls. The bounds are used only for graphics visualization.

Reimplemented from Interface.

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Member Data Documentation

Array<Approximation> functionSurfaces [private]

list of approximations, one per response function

This formulation allows the use of mixed approximations (i.e., different approximations used for different response functions), although the input specification is not currently general enough to support it.

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The documentation for this class was generated from the following files:

• ApproximationInterface.H
• ApproximationInterface.C

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