.. _method-polynomial_chaos-expansion_order-collocation_points-least_squares-svd: """ svd """ Calculate the coefficients of a polynomial chaos expansion using the singular value decomposition. .. toctree:: :hidden: :maxdepth: 1 **Specification** - *Alias:* None - *Arguments:* None **Description** Calculate the coefficients of a polynomial chaos expansion using the singular value decomposition. When the number of model runs exceeds the number of terms in the PCE, the solution returned will be the least-squares solution, otherwise the solution will be the minimum norm solution computed using the pseudo-inverse.