.. _`Group K-fold Cross Validation`:

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

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

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


K-fold variant with non-overlapping groups.The same group will not appear in two different folds (the number of distinct groups has to be at least equal to the number of folds).





Definition
::::::::::


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

    **X**  table
        X

    **Y**  table
        Y

    **G**  table
        G


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

    **out**  [(table, table)]
        out




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

    **Number of splits** (n_splits)
        Number of folds, must be atleast 2









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

.. automodule:: node_crossvalidation
    :noindex:

.. class:: CrossVal_GroupKFold
    :noindex: