Figure creation with plt.figure in Matplotlib - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does plt.figure() do in matplotlib?

plt.figure() creates a new figure window or canvas where you can draw your plots. Think of it as a blank sheet of paper to draw on.

beginner

How can you set the size of a figure using plt.figure()?

You can set the size by passing the figsize argument as a tuple of width and height in inches, like plt.figure(figsize=(8, 5)).

intermediate

What is the default behavior if you call plt.figure() multiple times without showing or saving the figure?

Each call creates a new figure. If you don't show or save them, they stay in memory but are not visible until you call plt.show().

intermediate

How do you give a figure a custom title or name using plt.figure()?

You can use the num parameter to name the figure window, for example plt.figure(num='My Plot').

beginner

Why might you want to create multiple figures in matplotlib?

Creating multiple figures lets you work on different plots separately, like having multiple sheets of paper to compare or save different charts.

What does plt.figure(figsize=(6,4)) do?

A Creates 6 figures and 4 subplots

B Creates a figure with 6 rows and 4 columns

C Creates a figure 6 inches wide and 4 inches tall

D Sets the font size to 6 and line width to 4

The figsize argument sets the width and height of the figure in inches.

Which command creates a new blank figure in matplotlib?

A plt.subplot()

B plt.plot()

C plt.show()

D plt.figure()

plt.figure() creates a new figure window to draw on.

How can you name a figure window in matplotlib?

A Using <code>plt.title()</code>

B Using <code>plt.figure(num='Name')</code>

C Using <code>plt.xlabel()</code>

D Using <code>plt.legend()</code>

The num parameter in plt.figure() sets the figure window's name.

What happens if you call plt.figure() twice without showing the plot?

A Two separate figures are created but not shown

B An error occurs

C Only one figure is created

D The second call overwrites the first figure

Each call creates a new figure. Without plt.show(), they remain hidden.

Why use multiple figures in matplotlib?

A To plot multiple charts separately

B To speed up plotting

C To change colors automatically

D To save memory

Multiple figures let you create and manage different plots independently.

Explain how to create a new figure with a specific size and name using plt.figure().

Think about how to set width, height, and window title.

Describe why creating multiple figures can be useful when making plots.

Imagine working on different drawings on separate sheets.