Axes creation with add_subplot in Matplotlib - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the add_subplot method do in matplotlib?

It adds a new set of axes (a subplot) to a figure, allowing you to create multiple plots in one figure.

beginner

How do you specify the position of a subplot using add_subplot?

You specify the number of rows, columns, and the index of the subplot in the grid, for example add_subplot(2, 3, 4) creates a subplot in the 2x3 grid at position 4.

beginner

What is the difference between add_subplot(111) and add_subplot(1,1,1)?

Both create a single subplot that fills the entire figure. 111 is a shorthand for 1 row, 1 column, 1st subplot.

intermediate

Can add_subplot be used to create 3D plots?

Yes, by passing projection='3d' as an argument, you can create 3D axes with add_subplot.

beginner

What type of object does add_subplot return?

It returns an Axes object, which you can use to plot data and customize the subplot.

What does fig.add_subplot(2, 2, 3) do?

A Adds a subplot in a 2x2 grid at position 3

B Adds three subplots in one figure

C Creates a figure with 3 rows and 2 columns

D Removes the third subplot from the figure

This command adds a subplot in the third position of a 2 rows by 2 columns grid.

Which argument enables 3D plotting in add_subplot?

A style='3d'

B type='3d'

C mode='3d'

D projection='3d'

Use projection='3d' to create 3D axes.

What does add_subplot(111) mean?

A Invalid syntax

B 1 row, 1 column, 11th subplot

C 1 row, 1 column, 1st subplot

D 11 rows, 1 column, 1st subplot

It's shorthand for a single subplot filling the figure.

What type of object do you get from add_subplot?

A Plot object

B Axes object

C Figure object

D DataFrame object

add_subplot returns an Axes object to plot on.

If you want 6 subplots arranged in 2 rows and 3 columns, which call is correct?

A add_subplot(2, 3, 6)

B add_subplot(3, 2, 6)

C add_subplot(6, 1, 2)

D add_subplot(1, 6, 2)

2 rows, 3 columns, position 6 is correct for 6 subplots.

Explain how to create multiple subplots in one figure using add_subplot.

Think about how you divide the figure space and select the position.

Describe how to create a 3D plot using add_subplot.

Remember the special argument for 3D.