Question

How can you display percentage values inside a pie chart in Matplotlib?

• A. Use the autopct="%1.1f%%" argument in plt.pie()
• B. Enable show_labels=True in plt.pie()
• C. Add percentage="on" inside plt.pie()
• D. It is not possible to display percentages inside slices

Hint:

The "1.1f" in "%1.1f%%" formats the number as a float with 1 digit after the decimal point.
To show no decimal digits (e.g. 25% instead of 25.0%), use "%1.0f%%".

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The ‘autopct‘ parameter in Matplotlib's ‘pie()‘ function allows for the automatic labeling of slices with their numeric percentage values using a string formatting format.

Step 2: Detailed Explanation:
- The string ‘"%1.1f%%"‘ is a Python format specifier.
- ‘1.1f‘ indicates a floating-point number with one decimal place.
- The double ‘%%‘ is used to escape the percentage sign, as a single ‘%‘ is reserved for the format specifier.

Step 3: Final Answer:
The correct method is using the ‘autopct‘ argument.