.. _book_fig_chapter8_fig_cross_val_A:


Cross Validation Examples: Part 1
---------------------------------
Figure 8.12

Our toy data set described by eq. 8.75. Shown is the line of best fit, which
quite clearly underfits the data. In other words, a linear model in this case
has high bias.



.. image:: ../images/chapter8/fig_cross_val_A_1.png
    :scale: 100
    :align: center


.. raw:: html
    
    <div class="toggle_trigger"><a href="#">

**Code output:**

.. raw:: html

    </a></div>
    <div class="toggle_container">

.. literalinclude:: fig_cross_val_A.txt

.. raw:: html

    </div>
    <div class="toggle_trigger" id="start_open"><a href="#">

**Python source code:**

.. raw:: html

    </a></div>
    <div class="toggle_container">

.. literalinclude:: fig_cross_val_A.py
    :lines: 10-

.. raw:: html

    </div>
    <div align="right">

:download:`[download source: fig_cross_val_A.py] <fig_cross_val_A.py>`

.. raw:: html
    
    </div>