Blurb::
Filename for a YAML file that specifies Gaussian process options
Description::
The YAML file contains configuration options
that are used to populate a Teuchos ParameterList used by the Gaussian process
that will override other keyword-specified parameters.
Missing options in the YAML file are set to default values.
Topics::

Examples::

.. code-block::

    # FILE: gp_options.yaml
    
    GP Parameters:
      Sigma Bounds:
        lower bound: 1.0e-2
        upper bound: 1.0e2
      scaler name: standardization
      num restarts: 20
      Nugget:
        fixed nugget: 0.0
        estimate nugget: true
        Bounds:
          lower bound: 3.17e-8
          upper bound: 1.0e-2
      gp seed: 42
      standardize response: false
      Trend:
        estimate trend: true
        Options:
          max degree: 2
          reduced basis: false
          p-norm: 1.0
          scaler type: none
          regression solver type: SVD
          verbosity: 1
      kernel type: squared exponential
      Length-scale Bounds:
        lower bound: 1.0e-2
        upper bound: 1.0e2
      verbosity: 1


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