.. _model-active_subspace-normalization-mean_value:

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mean_value
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Normalize by sample mean of function values


.. toctree::
   :hidden:
   :maxdepth: 1



**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


For each reponse function :math:`f_i` , normalize its gradient data by
the mean :math:`m_i`  of the function values taken across samples :math:`j=1,...,J` :


.. math::  m_i = \frac{1}{J} \sum_{j=1}^{J}{f_i^j}