.. _pylab_examples-bar_stacked:

pylab_examples example code: bar_stacked.py
===========================================



.. plot:: /media/TOSHI/temp/numpy_scipy_matplotlib/matplotlib/matplotlib-1.1.1~rc2/doc/mpl_examples/pylab_examples/bar_stacked.py

::

    #!/usr/bin/env python
    # a stacked bar plot with errorbars
    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='r', yerr=womenStd)
    p2 = plt.bar(ind, womenMeans, width, color='y',
                 bottom=menMeans, yerr=menStd)
    
    plt.ylabel('Scores')
    plt.title('Scores by group and gender')
    plt.xticks(ind+width/2., ('G1', 'G2', 'G3', 'G4', 'G5') )
    plt.yticks(np.arange(0,81,10))
    plt.legend( (p1[0], p2[0]), ('Men', 'Women') )
    
    plt.show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)