Dakota Reference Manual: decay

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decay

Estimate spectral coefficient decay rates to guide dimension-adaptive refinement.

## Specification

Alias: none

Argument(s): none

## Description

Estimate spectral coefficient decay rates from a rate estimation technique similar to Richardson extrapolation. These decay rates are used to guide dimension-adaptive refinement, where slower decay rates result in higher dimension preference.

## Examples

    method,
            polynomial_chaos
              sparse_grid_level = 3
              dimension_adaptive p_refinement decay
                max_iterations  = 20
                convergence_tol = 1.e-4