.. _`Categorical Encoder`:

.. _`org.sysess.sympathy.machinelearning.category_encoder`:

Categorical Encoder
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.. image:: categorical_encoder.svg
   :width: 48


Encodes all inputs into integer features, assumes that all inputs are Categorical 




Documentation
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Attributes
==========

    **categories_**
        List of dictionaries that map each input feature into a categorical integer

    **inv_categories_**
        List of dictionaries that map each output value into an corresponding input value


Definition
::::::::::


Output ports
============

    **model**  model
        Model




Configuration
=============

    **Maximum categories** (max_categories)
        Maximum number of categories for any feature. Remaining values are encoded as 0. If None then no upper bound on number of features









Implementation
==============

.. automodule:: node_preprocessing
    :noindex:

.. class:: CategoryEncoderNode
    :noindex: