Overview

A Grouped Donut Chart is used to compare proportions across multiple categories. It displays multiple donut charts side by side, where each donut represents a different group while maintaining the same categorical slices within each.

When to Use

• To compare proportions within different groups (e.g., sales distribution by product family across multiple years).

Data Structure

A Grouped Donut Chart requires:

• Details (Slices): A categorical field defining the segments within each donut (e.g., product_family).
• Grouping (Donuts): A categorical field used to create separate donut charts (e.g., the_date(Year)).
• Measures: A numerical field representing the values for each slice (e.g., store_sales).
• Color (Optional): Used to set the color of the chart based on categories or numerical values.
• Tooltips (Optional): Additional information displayed when hovering over slices.
• Time Axis (Optional): Allows for time-based filtering.
• Filters (Optional): Used to refine the displayed data (e.g., filtering by region or product type).

Example Data Structure

the_date (Year)	product_family	store_sales
1997	Food	40,9035.59
1997	Non-Consumable	10,7355.48
1997	Drink	4,8836.21
1998	Food	77,8135.80
1998	Non-Consumable	20,7269.51
1998	Drink	9,3742.16

Example