.. _pylab_examples-simple_plot_fps:

pylab_examples example code: simple_plot_fps.py
===============================================



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

::

    """
    Example: simple line plot.
    Show how to make and save a simple line plot with labels, title and grid
    """
    from __future__ import print_function  # not necessary in Python 3.x
    import matplotlib.pyplot as plt
    import numpy as np
    import time
    
    
    plt.ion()
    
    t = np.arange(0.0, 1.0 + 0.001, 0.001)
    s = np.cos(2*2*np.pi*t)
    plt.plot(t, s, '-', lw=2)
    
    plt.xlabel('time (s)')
    plt.ylabel('voltage (mV)')
    plt.title('About as simple as it gets, folks')
    plt.grid(True)
    
    frames = 100.0
    t = time.time()
    c = time.clock()
    for i in range(int(frames)):
        part = i / frames
        plt.axis([0.0, 1.0 - part, -1.0 + part, 1.0 - part])
    wallclock = time.time() - t
    user = time.clock() - c
    print("wallclock:", wallclock)
    print("user:", user)
    print("fps:", frames / wallclock)
    

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