.. _`Simple Train-Test Split`:

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

Simple Train-Test Split
~~~~~~~~~~~~~~~~~~~~~~~

.. image:: traintest.svg
   :width: 48


Splits input data into a training and a test dataset

*Configuration*:


  - *test_size*

    Size of test data as fraction (< 1) of all data

  - *stratify*

    Stratify data using Y as class labels



*Input ports*:
    **X** : table
        X
    **Y** : table
        Y

*Output ports*:
    **X_train** : table
        X_train
    **Y_train** : table
        Y_train
    **X_test** : table
        X_test
    **Y_test** : table
        Y_test



**Test size** (test_size)
    Size of test data as fraction (< 1) of all data
**Stratify** (stratify)
    Stratify data using Y as class labels

.. automodule:: node_crossvalidation

.. class:: CrossVal_SimpleSplit