Label, title, and axis names in Matplotlib - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the title() function in matplotlib?

The title() function adds a title to the top of the plot, helping to explain what the plot is about.

beginner

How do you add a label to the x-axis in a matplotlib plot?

Use the xlabel() function with a string argument to name the x-axis, like plt.xlabel('Time (seconds)').

beginner

Which matplotlib function is used to label the y-axis?

The ylabel() function is used to add a label to the y-axis, for example plt.ylabel('Temperature (°C)').

beginner

Why is it important to add labels and titles to your plots?

Labels and titles make plots easier to understand by explaining what data is shown and what each axis represents, just like signs help you understand a map.

beginner

Show the matplotlib code to create a plot with title 'Sales Over Time', x-axis label 'Month', and y-axis label 'Sales ($)'.

import matplotlib.pyplot as plt
plt.plot([1, 2, 3, 4], [10, 20, 25, 30])
plt.title('Sales Over Time')
plt.xlabel('Month')
plt.ylabel('Sales ($)')
plt.show()

Which function adds a title to a matplotlib plot?

A title()

B xlabel()

C ylabel()

D legend()

The title() function sets the title of the plot.

How do you label the y-axis in matplotlib?

A ylabel()

B xlabel()

C title()

D plot()

Use ylabel() to add a label to the y-axis.

What does xlabel('Time') do in a plot?

A Labels the y-axis as 'Time'

B Creates a legend named 'Time'

C Adds a title 'Time'

D Labels the x-axis as 'Time'

xlabel() sets the label for the x-axis.

Why should you add axis labels to a plot?

A To save the plot

B To change the plot color

C To explain what each axis represents

D To add grid lines

Axis labels help viewers understand the data shown on each axis.

Which of these is NOT a function to add text labels in matplotlib?

A title()

B plot()

C xlabel()

D ylabel()

plot() draws data points; it does not add text labels.

Explain how to add a title and axis labels to a matplotlib plot and why it is useful.

Think about how titles and labels help someone reading your plot.

Write a short matplotlib code snippet that creates a simple line plot with a title and labels for both axes.

Start with plotting data, then add title and labels, finally show the plot.