Dual y-axis for different scales in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a plot with two y-axes using matplotlib.

Matplotlib

import matplotlib.pyplot as plt
x = [1, 2, 3, 4, 5]
y1 = [10, 20, 30, 40, 50]
y2 = [100, 200, 300, 400, 500]
fig, ax1 = plt.subplots()
ax2 = ax1.[1]()
ax1.plot(x, y1, 'g-')
ax2.plot(x, y2, 'b-')
plt.show()

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

Asubplots

Btwiny

Csubplot

Dtwinx

Attempts:

3 left

💡 Hint

Common Mistakes

Using twiny() creates a twin x-axis, not y-axis.

Using subplot() or subplots() creates new plots, not twin axes.

The method twinx() creates a second y-axis sharing the same x-axis.

2fill in blank

medium

Complete the code to set the y-axis label for the second y-axis.

Matplotlib

ax2.[1]('Second Y Axis')

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

Aset_ylabel

Bset_xlabel

Clabel

Dset_title

Attempts:

3 left

💡 Hint

Common Mistakes

Using set_xlabel() sets the x-axis label instead.

Using label or set_title() does not set axis labels.

set_ylabel() sets the label for the y-axis of the given axis object.

3fill in blank

hard

Fix the error in the code to correctly set the color of the second y-axis tick labels.

Matplotlib

ax2.tick_params(axis='y', [1]='b')

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Alabelcolour

Bcolor

Clabelcolor

Dtickcolor

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'color' or 'tickcolor' causes no effect or errors.

Misspelling 'labelcolor' as 'labelcolour'.

The tick_params method uses 'labelcolor' to set the color of tick labels.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Matplotlib

words = ['data', 'science', 'is', 'fun']
lengths = {word: [1] for word in words if [2]

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Alen(word)

Bword

Clen(word) > 3

Dword > 3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'word > 3' compares strings to numbers, causing errors.

Using 'word' instead of 'len(word)' for values.

The dictionary comprehension maps each word to its length if the length is greater than 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their lengths if length is greater than 3.

Matplotlib

words = ['data', 'science', 'is', 'fun']
result = [1]: [2] for [3] in words if len([3]) > 3}}

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

Aword.upper()

Blen(word)

Cword

Dlen

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'len' as loop variable causes errors.

Not using upper() for keys.

Mismatching variable names in comprehension.

The comprehension maps uppercase words to their lengths, iterating over each word and filtering by length.