.. _`K-fold Cross Validation`:

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

K-fold Cross Validation
```````````````````````

.. image:: Kfold.svg
   :width: 48


Gives splits for K-fold cross validation





Definition
::::::::::


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

    **X**
        | Type: table
        | Description: X
    **Y**
        | Type: table
        | Description: Y

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

    **out**
        | Type: [(table, table)]
        | Description: out



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

    **Number of splits** (n_splits)
        Number of folds, must be atleast 2
    **Shuffle** (shuffle)
        Shuffle the data before splitting







Examples
........





The node can be found in:

* :download:`Hyper_parameters.syx </Examples/Sympathy for Data/MachineLearning/Hyper_parameters.syx>`

* :download:`Custom_CrossValidation.syx </Examples/Sympathy for Data/MachineLearning/Custom_CrossValidation.syx>`




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

.. automodule:: node_crossvalidation
    :noindex:

.. class:: CrossVal_KFold
    :noindex: