.. _method-multifidelity_polynomial_chaos-metric_scale-relative:

""""""""
relative
""""""""


relative scaling of statistical metrics when adapting UQ surrogates


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**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


When adapting a UQ surrogate model, the ``relative``
option indicates that the change is measured relative to the current
reference value (which evolves during the refinement), such that the
convergence tolerance controls the relative change.

*Default Behavior*

*Expected Output*

*Usage Tips*

*Additional Discussion*