DPI settings for resolution in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the DPI of the figure to 100.

Matplotlib

import matplotlib.pyplot as plt
fig = plt.figure(dpi=[1])
plt.show()

Drag options to blanks, or click blank then click option'

A100

B200

C50

D80

Attempts:

3 left

💡 Hint

Common Mistakes

Using dpi values too low or too high without reason.

Confusing dpi with figure size.

The dpi parameter controls the dots per inch (resolution) of the figure. Setting dpi=100 sets the resolution to 100 dots per inch.

2fill in blank

medium

Complete the code to save the figure with a DPI of 300.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6])
plt.savefig('plot.png', dpi=[1])

Drag options to blanks, or click blank then click option'

A150

B100

C72

D300

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to set dpi when saving.

Using dpi values too low for print quality.

When saving a figure, dpi controls the resolution of the saved image. 300 dpi is a common high-quality print resolution.

3fill in blank

hard

Fix the error in the code to correctly set the DPI when creating a figure.

Matplotlib

import matplotlib.pyplot as plt
fig = plt.figure([1]=200)
plt.show()

Drag options to blanks, or click blank then click option'

Aresolution

Bdpi

Csize

Dquality

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect parameter names like resolution or quality.

Confusing dpi with figure size parameters.

The correct parameter name to set resolution is dpi, not resolution or size.

4fill in blank

hard

Fill both blanks to create a figure with size 6x4 inches and DPI 150.

Matplotlib

import matplotlib.pyplot as plt
fig = plt.figure(figsize=([1], [2]), dpi=150)
plt.show()

Drag options to blanks, or click blank then click option'

A6

B4

C8

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping width and height values.

Using DPI values in figsize instead of inches.

figsize takes a tuple of (width, height) in inches. Here, width=6 and height=4 inches.

5fill in blank

hard

Fill all three blanks to save a figure with a 5x3 inch size, DPI 200, and filename 'high_res.png'.

Matplotlib

import matplotlib.pyplot as plt
fig = plt.figure(figsize=([1], [2]), dpi=[3])
plt.savefig('high_res.png')

Drag options to blanks, or click blank then click option'

A5

B3

C200

D150

Attempts:

3 left

💡 Hint

Common Mistakes

Not matching figsize and dpi values correctly.

Forgetting to set dpi when saving the figure.

Set figsize to (5, 3) inches and dpi to 200 for high resolution. Filename is already given.