.. _`Categorical Encoder`:

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

Categorical Encoder
~~~~~~~~~~~~~~~~~~~

.. image:: categorical_encoder.svg
   :width: 48


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

:Configuration:


  - *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



: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



:Inputs:


:Outputs:
    **model** : model
        Model

*Ports*:

    **Outputs**:

        :model: model

            Model

*Configuration*:

    **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

.. automodule:: node_preprocessing

.. class:: CategoryEncoderNode