.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "glr_examples/view/plot_pr.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_glr_examples_view_plot_pr.py>`
        to download the full example code or to run this example in your browser via Binder

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_glr_examples_view_plot_pr.py:


=================================================
Plot Precision-Recall (PR)
=================================================

computes the score based on the decision function
 and plot the result as a score vs threshold.

.. GENERATED FROM PYTHON SOURCE LINES 9-12

.. code-block:: Python

    # Author: L.Kouadio 
    # Licence: BSD-3-clause








.. GENERATED FROM PYTHON SOURCE LINES 13-25

.. code-block:: Python

    from watex.exlib.sklearn import SGDClassifier
    from watex.datasets.dload import load_bagoue 
    from watex.utils import cattarget 
    from watex.view.mlplot import EvalPlot 
    X , y = load_bagoue(as_frame =True )
    sgd_clf = SGDClassifier(random_state= 42) # our estimator 
    b= EvalPlot(scale = True , encode_labels=True)
    b.fit_transform(X, y)
    # binarize the label b.y 
    ybin = cattarget(b.y, labels= 2 ) # can also use labels =[0, 1]
    b.y = ybin 
    # plot the Precision-recall tradeoff  
    b.plotPR(sgd_clf , label =1) # class=1


.. image-sg:: /glr_examples/view/images/sphx_glr_plot_pr_001.png
   :alt: plot pr
   :srcset: /glr_examples/view/images/sphx_glr_plot_pr_001.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none


    EvalPlot(tname= None, objective= None, scale= True, ... , sns_height= 4.0, sns_aspect= 0.7, verbose= 0)




.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.360 seconds)


.. _sphx_glr_download_glr_examples_view_plot_pr.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: binder-badge

      .. image:: images/binder_badge_logo.svg
        :target: https://mybinder.org/v2/gh/watex/watex/0.3.X?urlpath=lab/tree/notebooks/glr_examples/view/plot_pr.ipynb
        :alt: Launch binder
        :width: 150 px

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: plot_pr.ipynb <plot_pr.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: plot_pr.py <plot_pr.py>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_