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vline_demo.py

#!/usr/bin/env python
from pylab import *
from matplotlib.numerix import sin, exp, multiply, absolute, pi
from matplotlib.numerix.random_array import normal

def f(t):
    s1 = sin(2*pi*t)
    e1 = exp(-t)
    return absolute(multiply(s1,e1))+.05


t = arange(0.0, 5.0, 0.1)
s = f(t)
nse = multiply(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()


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