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api example code: legend_demo.pyΒΆ

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

import numpy as np
import matplotlib.pyplot as plt

# Make some fake data.
a = b = np.arange(0,3, .02)
c = np.exp(a)
d = c[::-1]

# Create plots with pre-defined labels.
plt.plot(a, c, 'k--', label='Model length')
plt.plot(a, d, 'k:', label='Data length')
plt.plot(a, c+d, 'k', label='Total message length')

legend = plt.legend(loc='upper center', shadow=True, fontsize='x-large')

# Put a nicer background color on the legend.

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