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pylab_examples example code: vline_hline_demo.pyΒΆ

(Source code, png, hires.png, pdf)

Small demonstration of the hlines and vlines plots.

import matplotlib.pyplot as plt
import numpy as np
import numpy.random as rnd

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

t = np.arange(0.0, 5.0, 0.1)
s = f(t)
nse = rnd.normal(0.0, 0.3, t.shape) * s

fig = plt.figure(figsize=(12, 6))
vax = fig.add_subplot(121)
hax = fig.add_subplot(122)

vax.plot(t, s + nse, 'b^')
vax.vlines(t, [0], s)
vax.set_xlabel('time (s)')
vax.set_title('Vertical lines demo')

hax.plot(s + nse, t, 'b^')
hax.hlines(t, [0], s, lw=2)
hax.set_xlabel('time (s)')
hax.set_title('Horizontal lines demo')


Keywords: python, matplotlib, pylab, example, codex (see Search examples)