==================
Standard Deviation
==================
:doc:`/WorkProcessClassifiers/GlobalAlgorithm/index` - :doc:`/WorkProcessClassifiers/OneDimensionalAlgorithm/index`

*Standard Deviation* algorithm computes the standard deviation of the input data sequence.

.. rubric:: Input Parameters

+--------------------+--------------------------------------------+----------------------------------------+------------------------------------------------+---------+
| Parameter          | Type                                       | Constraint                             | Description                                    | Remarks |
+====================+============================================+========================================+================================================+=========+
| :math:`Y`          | :math:`Y \in \mathbb R^N`                  | :math:`N \in \mathbb{N}`               | Input data vector of length :math:`N`          |         |
+--------------------+--------------------------------------------+----------------------------------------+------------------------------------------------+---------+

.. rubric:: Output Parameters

+----------------------------+------------------------------------------------+------------+-------------------------------------------------------------------+-------------------------------------------------------------------------------+
| Parameter                  | Type                                           | Constraint | Description                                                       | Remarks                                                                       |
+============================+================================================+============+===================================================================+===============================================================================+
| :math:`\sigma`             | :math:`\sigma \in \mathbb R`                   |            | Standard deviation of data values available in :math:`Y`          | The result is sensitive to improper values such as 'nan', 'inf', 'null, 'etc. |
+----------------------------+------------------------------------------------+------------+-------------------------------------------------------------------+-------------------------------------------------------------------------------+

.. rubric:: Tool Support

* :doc:`/Tools/MatlabTool/index`

  For details refer to the online documentation of the function `'std' <http://www.mathworks.de/de/help/matlab/ref/std.html>`__.