.. _pylab_examples-vline_demo:

pylab_examples example code: vline_demo.py
==========================================



.. plot:: /home/mdboom/Work/builds/matplotlib/doc/mpl_examples/pylab_examples/vline_demo.py

::

    #!/usr/bin/env python
    from matplotlib.pyplot import *
    from numpy import sin, exp,  absolute, pi, arange
    from numpy.random import normal
    
    def f(t):
        s1 = sin(2*pi*t)
        e1 = exp(-t)
        return absolute((s1*e1))+.05
    
    
    t = arange(0.0, 5.0, 0.1)
    s = f(t)
    nse = normal(0.0, 0.3, t.shape) * s
    
    plot(t, s+nse, 'b^')
    vlines(t, [0], s)
    xlabel('time (s)')
    title('Comparison of model with data')
    show()
    
    

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