Figure size and DPI in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a figure with size 8 by 6 inches.

Matplotlib

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

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

A[8, 6]

B(8, 6)

C{8, 6}

D8, 6

Attempts:

3 left

💡 Hint

Common Mistakes

Using a list or set instead of a tuple for figsize.

Not using any brackets around the numbers.

The figsize parameter expects a tuple with width and height in inches, so (8, 6) is correct.

2fill in blank

medium

Complete the code to set the DPI (dots per inch) of the figure to 150.

Matplotlib

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

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

A100

B72

C150

D200

Attempts:

3 left

💡 Hint

Common Mistakes

Using a DPI value that is too low or default (like 72).

Confusing DPI with figure size.

The dpi parameter controls the resolution of the figure. Setting it to 150 increases the detail.

3fill in blank

hard

Fix the error in the code to create a figure with size 10 by 4 inches and DPI 120.

Matplotlib

import matplotlib.pyplot as plt
fig = plt.figure(figsize=[1], dpi=120)
plt.show()

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

A(10, 4)

B[10, 4]

C{10, 4}

D10, 4

Attempts:

3 left

💡 Hint

Common Mistakes

Using a list or set instead of a tuple for figsize.

Not using any brackets around the numbers.

The figsize must be a tuple, so (10, 4) is correct. Lists or sets cause errors.

4fill in blank

hard

Fill both blanks to create a figure with size 12 by 8 inches and DPI 100.

Matplotlib

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

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

A(12, 8)

B100

C150

D[12, 8]

Attempts:

3 left

💡 Hint

Common Mistakes

Using a list instead of a tuple for figsize.

Setting dpi to the wrong number.

Use a tuple (12, 8) for figsize and set dpi to 100 for the desired resolution.

5fill in blank

hard

Fill all three blanks to create a figure with size 5 by 5 inches, DPI 200, and save it as 'output.png'.

Matplotlib

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

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

A(5, 5)

B200

C'output.png'

D'figure.png'

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the filename.

Using a list instead of a tuple for figsize.

Setting dpi to a wrong value.

Use (5, 5) for size, 200 for dpi, and save the figure as 'output.png'.