.. _`Symbolic Aggregation Approximation (SAX)`:

.. _`com.sympathyfordata.timeseriesanalysis.sax`:

Symbolic Aggregation Approximation (SAX)
````````````````````````````````````````

.. image:: sax.svg
   :width: 48


Uses Symbolic Aggregation Approximation to reduce the output space into a (small) set of symbols. The input values are replaced by the value of the bin that they match. Each bin's value corresponds to one letter or digit. This generates a string from the input values. The final output is generated by sliding a window over this string.





Definition
::::::::::


Input ports
...........

    **input**  table
        input

    **bin_values** 0 - 1,  table
        bin_values


Output ports
............

    **output**  table
        output

    **bin_values** 0 - 1,  table
        bin_values




Configuration
.............

    **Bins** (bins)
        Number of output bins
    **Sliding window** (window)
        Generates words using a sliding window over the generated symbols. If zero then a single string is given









Implementation
..............

.. automodule:: node_paa_sax
    :noindex:

.. class:: SymbolicAggregationApproximation
    :noindex: