.. _data-iterator-apis:

Data Iterators
==============

NNabla provides various utilities for using data for training.

DataSource
----------

.. autoclass:: nnabla.utils.data_source.DataSource
    :members:
    :inherited-members:
    :show-inheritance:

.. autoclass:: nnabla.utils.data_source.DataSourceWithFileCache
    :members:
    :inherited-members:
    :show-inheritance:

.. autoclass:: nnabla.utils.data_source.DataSourceWithMemoryCache
    :members:
    :inherited-members:
    :show-inheritance:

DataIterator
------------

.. autoclass:: nnabla.utils.data_iterator.DataIterator
    :members:
    :inherited-members:
    :show-inheritance:

Utilities
---------

.. autofunction:: nnabla.utils.data_iterator.data_iterator

.. autofunction:: nnabla.utils.data_iterator.data_iterator_simple

.. autofunction:: nnabla.utils.data_iterator.data_iterator_csv_dataset

.. autofunction:: nnabla.utils.data_iterator.data_iterator_cache

.. autofunction:: nnabla.utils.data_iterator.data_iterator_concat_datasets

.. automodule:: nnabla.utils