.. _units-bar_unit_demo:

units example code: bar_unit_demo.py
====================================



.. plot:: /builddir/build/BUILD/matplotlib-1.2.0/doc/mpl_examples/units/bar_unit_demo.py

::

    #!/usr/bin/env python
    import numpy as np
    from basic_units import cm, inch
    import matplotlib.pyplot as plt
    
    
    N = 5
    menMeans = (150*cm, 160*cm, 146*cm, 172*cm, 155*cm)
    menStd =   ( 20*cm,  30*cm,  32*cm,  10*cm,  20*cm)
    
    fig = plt.figure()
    ax = fig.add_subplot(111)
    
    ind = np.arange(N)    # the x locations for the groups
    width = 0.35         # the width of the bars
    p1 = ax.bar(ind, menMeans, width, color='r', bottom=0*cm, yerr=menStd)
    
    
    womenMeans = (145*cm, 149*cm, 172*cm, 165*cm, 200*cm)
    womenStd =   (30*cm, 25*cm, 20*cm, 31*cm, 22*cm)
    p2 = ax.bar(ind+width, womenMeans, width, color='y', bottom=0*cm, yerr=womenStd)
    
    ax.set_title('Scores by group and gender')
    ax.set_xticks(ind+width)
    ax.set_xticklabels( ('G1', 'G2', 'G3', 'G4', 'G5') )
    
    ax.legend( (p1[0], p2[0]), ('Men', 'Women') )
    ax.yaxis.set_units(inch)
    ax.autoscale_view()
    
    #plt.savefig('barchart_demo')
    plt.show()
    

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