Donut chart variation in Matplotlib - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a donut chart?

A donut chart is a pie chart with a hole in the center. It shows parts of a whole, like a pie chart, but the center hole makes it easier to read and can hold labels or other info.

beginner

How do you create a donut chart using matplotlib?

You create a pie chart with matplotlib and add a white circle in the center to make a hole, turning it into a donut chart.

beginner

Why add a hole in the center of a pie chart to make a donut chart?

The hole reduces clutter and can hold text or labels, making the chart easier to understand and visually cleaner.

intermediate

What matplotlib function is used to draw the white circle in the center of a donut chart?

The function is plt.Circle(), which creates a circle patch that you add to the plot to create the hole.

intermediate

How can you add labels inside the hole of a donut chart in matplotlib?

You can use plt.text() to place text at the center coordinates of the chart, inside the hole.

What does a donut chart visually represent?

A A scatter plot with circles

B A bar chart with rounded edges

C A line chart with gaps

D Parts of a whole with a hole in the center

A donut chart is a pie chart with a hole in the center, showing parts of a whole.

Which matplotlib function helps create the hole in a donut chart?

A plt.Circle()

B plt.bar()

C plt.scatter()

D plt.plot()

plt.Circle() creates a circle patch that can be added to the plot to form the hole.

How do you add text inside the hole of a donut chart?

A Using plt.text() at the center coordinates

B Using plt.title()

C Using plt.xlabel()

D Using plt.legend()

plt.text() places text at specified coordinates, perfect for the center hole.

What is the main visual difference between a pie chart and a donut chart?

A Donut chart uses lines

B Pie chart has bars

C Donut chart has a hole in the center

D Pie chart has a legend

The donut chart is a pie chart with a hole in the center.

Why might you choose a donut chart over a pie chart?

A To show trends over time

B To add labels or info in the center hole

C To display data points

D To compare two variables

The hole in the donut chart can hold labels or extra info, improving clarity.

Explain how to create a donut chart using matplotlib step-by-step.

Think about how to turn a pie chart into a donut by adding a shape.

Describe the benefits of using a donut chart instead of a pie chart.

Consider what the hole adds to the chart.