

.. _sphx_glr_gallery_pylab_examples_bar_stacked.py:


=================
Stacked Bar Graph
=================

This is an example of creating a stacked bar plot with error bars
using `~matplotlib.pyplot.bar`.  Note the parameters *yerr* used for
error bars, and *bottom* to stack the women's bars on top of the men's
bars.





.. image:: /gallery/pylab_examples/images/sphx_glr_bar_stacked_001.png
    :align: center





.. code-block:: python


    import numpy as np
    import matplotlib.pyplot as plt


    N = 5
    menMeans = (20, 35, 30, 35, 27)
    womenMeans = (25, 32, 34, 20, 25)
    menStd = (2, 3, 4, 1, 2)
    womenStd = (3, 5, 2, 3, 3)
    ind = np.arange(N)    # the x locations for the groups
    width = 0.35       # the width of the bars: can also be len(x) sequence

    p1 = plt.bar(ind, menMeans, width, color='#d62728', yerr=menStd)
    p2 = plt.bar(ind, womenMeans, width,
                 bottom=menMeans, yerr=womenStd)

    plt.ylabel('Scores')
    plt.title('Scores by group and gender')
    plt.xticks(ind, ('G1', 'G2', 'G3', 'G4', 'G5'))
    plt.yticks(np.arange(0, 81, 10))
    plt.legend((p1[0], p2[0]), ('Men', 'Women'))

    plt.show()

**Total running time of the script:** ( 0 minutes  0.038 seconds)



.. container:: sphx-glr-footer


  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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

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

    `Generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_
