.. _preprocessor-ref:

Preprocessor

Preprocessor Interface

.. currentmodule:: ray.data

Constructor


.. autosummary::
    :nosignatures:
    :toctree: doc/

    ~preprocessor.Preprocessor

Fit/Transform APIs

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessor.Preprocessor.fit
~preprocessor.Preprocessor.fit_transform
~preprocessor.Preprocessor.transform
~preprocessor.Preprocessor.transform_batch
~preprocessor.PreprocessorNotFittedException

Generic Preprocessors

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.Concatenator
~preprocessors.SimpleImputer
~preprocessors.Chain

Categorical Encoders

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.Categorizer
~preprocessors.LabelEncoder
~preprocessors.MultiHotEncoder
~preprocessors.OneHotEncoder
~preprocessors.OrdinalEncoder

Feature Scalers

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.MaxAbsScaler
~preprocessors.MinMaxScaler
~preprocessors.Normalizer
~preprocessors.PowerTransformer
~preprocessors.RobustScaler
~preprocessors.StandardScaler

K-Bins Discretizers

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.CustomKBinsDiscretizer
~preprocessors.UniformKBinsDiscretizer

Feature Hashers and Vectorizers

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.FeatureHasher
~preprocessors.CountVectorizer
~preprocessors.HashingVectorizer

Specialized Preprocessors

.. autosummary:: :nosignatures: :toctree: doc/

~preprocessors.TorchVisionPreprocessor