.. _pylab_examples-axes_demo:

pylab_examples example code: axes_demo.py
=========================================



.. plot:: /home/tcaswell/source/p/matplotlib/doc/mpl_examples/pylab_examples/axes_demo.py

::

    import matplotlib.pyplot as plt
    import numpy as np
    
    # create some data to use for the plot
    dt = 0.001
    t = np.arange(0.0, 10.0, dt)
    r = np.exp(-t[:1000]/0.05)               # impulse response
    x = np.random.randn(len(t))
    s = np.convolve(x, r)[:len(x)]*dt  # colored noise
    
    # the main axes is subplot(111) by default
    plt.plot(t, s)
    plt.axis([0, 1, 1.1*np.amin(s), 2*np.amax(s)])
    plt.xlabel('time (s)')
    plt.ylabel('current (nA)')
    plt.title('Gaussian colored noise')
    
    # this is an inset axes over the main axes
    a = plt.axes([.65, .6, .2, .2], facecolor='y')
    n, bins, patches = plt.hist(s, 400, normed=1)
    plt.title('Probability')
    plt.xticks([])
    plt.yticks([])
    
    # this is another inset axes over the main axes
    a = plt.axes([0.2, 0.6, .2, .2], facecolor='y')
    plt.plot(t[:len(r)], r)
    plt.title('Impulse response')
    plt.xlim(0, 0.2)
    plt.xticks([])
    plt.yticks([])
    
    plt.show()
    

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