To set a title above each marker which represents the same label in Matplotlib, we can take the following steps −
Set the figure size and adjust the padding between and around the subplots.
Create x data points using Numpy.
Create four curves, c1, c2, c3 and c4 using plot() method.
Place a legend on the figure, such that the same label marker would come together.
To display the figure, use show() method.
Example
import numpy as np
from matplotlib import pyplot as plt, legend_handler
plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True
x = np.linspace(-10, 10, 100)
c1, = plt.plot(x, np.sin(x), ls='dashed', label='y=sin(x)')
c2, = plt.plot(x, np.sin(x+0.25), ls='dashdot', label='y=sin(x)')
c3, = plt.plot(x, np.cos(x), ls='solid', label='y=cos(x)')
c4, = plt.plot(x, np.cos(x+0.25), ls=':', label='y=cos(x)')
plt.legend([(c1, c2), (c3, c4)], ['y=sin(x)', 'y=cos(x)'], loc='upper right', handler_map={tuple: legend_handler.HandlerTuple(ndivide=None)})
plt.show()Output
