Secondary axes in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a secondary y-axis on the right side of the plot.

Matplotlib

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
ax.plot([1, 2, 3], [1, 4, 9])
secax = ax.[1]()
plt.show()

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

Asecondary_yaxis

Bsecondary_xaxis

Ctwiny

Dtwinx

Attempts:

3 left

💡 Hint

Common Mistakes

Using secondary_xaxis instead of twinx

Using twiny which creates a secondary x-axis

Using secondary_yaxis which returns an Axis object unsuitable for plotting

The twinx() method creates a secondary y-axis on the right side of the plot.

2fill in blank

medium

Complete the code to set the label of the secondary y-axis.

Matplotlib

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
secax = ax.twinx()
secax.[1]("Secondary Y")
plt.show()

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

Aset_xlabel

Bset_ylabel

Cset_title

Dset_label

Attempts:

3 left

💡 Hint

Common Mistakes

Using set_xlabel which sets the x-axis label

Using set_title which sets the plot title

Using set_label which is not a method of Axes

The set_ylabel() method sets the label of the y-axis, including the secondary y-axis.

3fill in blank

hard

Fix the error in the code to correctly create a secondary x-axis at the top.

Matplotlib

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
secax = ax.[1]()
plt.show()

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

Atwiny

Btwinx

Csecondary_xaxis

Dsecondary_yaxis

Attempts:

3 left

💡 Hint

Common Mistakes

Using secondary_xaxis which returns an Axis object unsuitable for plotting

Using twinx which creates a secondary y-axis

Using secondary_yaxis which is for y-axis

The twiny() method creates a secondary x-axis at the top of the plot.

4fill in blank

hard

Fill both blanks to create a secondary y-axis and set its label.

Matplotlib

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
secax = ax.[1]()
secax.[2]("Temperature (°C)")
plt.show()

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

Atwinx

Bset_ylabel

Cset_xlabel

Dtwiny

Attempts:

3 left

💡 Hint

Common Mistakes

Using twiny instead of twinx

Using set_xlabel to label y-axis

Forgetting to create the secondary axis before labeling

Use twinx() to create the secondary y-axis and set_ylabel() to label it.

5fill in blank

hard

Fill all three blanks to create a secondary x-axis at the top, set its label, and plot data on it.

Matplotlib

import matplotlib.pyplot as plt
fig, ax = plt.subplots()
secax = ax.[1]()
secax.[2]("Time (s)")
secax.[3]([0, 1, 2], [10, 20, 30])
plt.show()

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

Atwinx

Bset_xlabel

Cplot

Dtwiny

Attempts:

3 left

💡 Hint

Common Mistakes

Using twinx which creates a secondary y-axis

Using set_ylabel instead of set_xlabel for x-axis label

Forgetting to plot data on the secondary axis

Use twiny() to create the axis at the top, set_xlabel() to label it, and plot() to draw data on it.