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text_labels_and_annotations example code: text_demo_fontdict.pyΒΆ

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

Demo using fontdict to control style of text and labels.
import numpy as np
import matplotlib.pyplot as plt

font = {'family': 'serif',
        'color':  'darkred',
        'weight': 'normal',
        'size': 16,

x = np.linspace(0.0, 5.0, 100)
y = np.cos(2*np.pi*x) * np.exp(-x)

plt.plot(x, y, 'k')
plt.title('Damped exponential decay', fontdict=font)
plt.text(2, 0.65, r'$\cos(2 \pi t) \exp(-t)$', fontdict=font)
plt.xlabel('time (s)', fontdict=font)
plt.ylabel('voltage (mV)', fontdict=font)

# Tweak spacing to prevent clipping of ylabel

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