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Dakota Reference Manual
Version 6.15
Explore and Predict with Confidence
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Use sub-sampled tensor-product quadrature points to build a polynomial chaos expansion.
Alias: none
Argument(s): none
Default: regression with random sample set
Tthe collocation grid is defined using a subset of tensor-product quadrature points: the order of the tensor-product grid is selected as one more than the expansion order in each dimension (to avoid sampling at roots of the basis polynomials) and then the tensor multi-index is uniformly sampled to generate a non-repeated subset of tensor quadrature points.