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Python | Controlling the Line Width of a Graph Plot in Matplotlib

Python | Controlling the Line Width of a Graph Plot in Matplotlib: In this tutorial, we will learn how you can change / control the width of the lines in a Matplotlib plot. Learn with the help of example. By Anuj Singh Last updated : August 18, 2023

Control/Change the Line Width of a Graph Plot in Matplotlib

Line width is another property that can play a big role in basic data visualization. Bold lines have a major impact on readability than thin lines. Plotting includes sum or average line are plotting with greater line width. Because of such type of usage, matplotlib provides a feature to change linewidth.

Syntax

matplotlib.pyplot.plot(x,y,linewidth=2.0)

# linewidth=2.0
# Width of the line

Example

Following is an example for controlling the line width:

Python program for controlling the line width

# Data Visualization using Python
# Controling line width

import numpy as np
import matplotlib.pyplot as plt

x1 = np.linspace(0.0, 2.0)
x2 = np.linspace(0.0, 2.0)

y1 = np.sin(2 * np.pi * x1) * np.exp(-x1)
y2 = np.cos(2 * np.pi * x2)

plt.plot(x1, y1, 'b') 
plt.plot(x2, y2, 'b', linewidth=3.0)
plt.xlabel('Time')
plt.ylabel('oscilation')
plt.title('LineWidth')
plt.figure()

Output:

Output is as figure