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A simple plot with a custom dashed line

A Line object’s set_dashes method allows you to specify dashes with a series of on/off lengths (in points).

import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 10, 500)
dashes = [10, 5, 100, 5]  # 10 points on, 5 off, 100 on, 5 off

fig, ax = plt.subplots()
line1, = ax.plot(x, np.sin(x), '--', linewidth=2,
                 label='Dashes set retroactively')

line2, = ax.plot(x, -1 * np.sin(x), dashes=[30, 5, 10, 5],
                 label='Dashes set proactively')

ax.legend(loc='lower right')

Total running time of the script: ( 0 minutes 0.083 seconds)

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