NonDPolynomialChaos Class Reference

quantification More...

Inheritance diagram for NonDPolynomialChaos:

NonDExpansion NonD Analyzer Iterator List of all members.

Public Member Functions

 NonDPolynomialChaos (Model &model)
 constructor
 ~NonDPolynomialChaos ()
 destructor
void quantify_uncertainty ()
 perform a forward uncertainty propagation using SFEM/PCE methods
void print_results (ostream &s)
 print the final statistics and PCE coefficient array

Private Attributes

String expansionImportFile
 filename for import of chaos coefficients
RealMatrix pceGradsMeanX
 evaluated at the means (used as uncertainty importance metrics)

Detailed Description

quantification

The NonDPolynomialChaos class uses a polynomial chaos expansion (PCE) approach to approximate the effect of parameter uncertainties on response functions of interest. It utilizes the OrthogPolyApproximation class to manage multiple types of orthogonal polynomials within a Wiener-Askey scheme to PCE. It supports PCE coefficient estimation via sampling, quadrature, point-collocation, and file import.


The documentation for this class was generated from the following files:
Generated on Wed Nov 5 19:54:07 2008 for DAKOTA by  doxygen 1.5.1