Education platform for interview prep, online tests, tutorials, and live practice

Build skills with focused learning paths, mock tests, and interview-ready content.

WithoutBook brings subject-wise interview questions, online practice tests, tutorials, and comparison guides into one responsive learning workspace.

Search the library

Prepare Interview

Ask Question

Mock Exams

Bookmark this page

Python Matplotlib Interview Questions and Answers

1
2
3
4
5
6

Ques 26. How can you create a violin plot in Matplotlib?

Use the `plt.violinplot()` function to create a violin plot, which is used for visualizing the distribution of data.

Example:

data = [np.random.normal(0, std, 100) for std in range(1, 4)]
plt.violinplot(data, showmedians=True)
plt.show()

Is it helpful? Yes No Add Comment View Comments

Ques 27. What is the purpose of the `plt.tight_layout()` function in Matplotlib?

`plt.tight_layout()` automatically adjusts subplot parameters to ensure that subplots fit into the figure area.

Example:

plt.subplot(2, 1, 1)
plt.plot([1, 2, 3, 4], [10, 20, 25, 30])
plt.subplot(2, 1, 2)
plt.scatter([1, 2, 3, 4], [10, 20, 25, 30])
plt.tight_layout()
plt.show()

Is it helpful? Yes No Add Comment View Comments

Ques 28. How can you create a polar plot in Matplotlib?

Use the `plt.polar()` function to create a polar plot, which is useful for visualizing data in circular coordinates.

Example:

theta = np.linspace(0, 2*np.pi, 100)
r = 1 + np.sin(3*theta)
plt.polar(theta, r)
plt.show()

Is it helpful? Yes No Add Comment View Comments

Ques 29. What is the purpose of the `plt.annotate()` function in Matplotlib?

`plt.annotate()` is used to add annotations with arrows to points on the plot.

Example:

plt.plot([1, 2, 3, 4], [10, 20, 25, 30])
plt.annotate('Max Value', xy=(3, 30), xytext=(2.5, 28), arrowprops=dict(facecolor='black', shrink=0.05))
plt.show()

Is it helpful? Yes No Add Comment View Comments

Ques 30. How can you create a barh (horizontal bar) chart in Matplotlib?

Use the `plt.barh()` function to create a horizontal bar chart in Matplotlib.

Example:

plt.barh(['A', 'B', 'C', 'D'], [10, 20, 25, 30])
plt.show()

Is it helpful? Yes No Add Comment View Comments

1
2
3
4
5
6

Most helpful rated by users:

Copyright © 2026, WithoutBook.