Working with Aggregate Tables
Use Aggregate Tables to report questions asked multiple times, for example for the first mentioned brand and the second mentioned brand.
You can create:
- Aggregate Cross Tables
- Aggregate Grid Tables
Before you create an Aggregate Table, you must first create the required aggregate variables.
The Banner Variable
When a question is asked for each mentioned brand, the dataset contains variables such as Brand1, Brand2, and so on.
For example:
Brand1contains the first mentioned brandBrand2contains the second mentioned brand
Each of these variables contains all possible brands as categories.
Create an aggregate variable named Brands that contains all these variables. Use this variable as the banner variable.
The Stub Variable
For each mentioned brand, you may also have asked a follow-up question, for example whether the brand offers good service.
For example:
Service1contains the answer for the first mentioned brandService2contains the answer for the second mentioned brand
Create an aggregate variable named Service that contains all these variables.
Aggregate Cross Table
After you create the Brands and Service aggregate variables, you can create an Aggregate Cross Table.
- Create the aggregate variable
Brands. - Create the aggregate variable
Service. - Create a table with
Servicein the stub. - Use
Brandsas the banner.
This table gives you an overall view of how the brands were rated.
You can think of this as the aggregated result of these tables:
Service1×Brand1Service2×Brand2
Aggregate Grid Table
Use an Aggregate Grid Table when you want to report several variables for each mentioned brand in the same table.
For example, you may have asked whether each brand:
- offers good service
- rewards loyalty
- has the right price
In this case, you must create separate aggregate variables for each brand position.
For example:
BrandProperties1containsService1,Loyalty1, andPrice1BrandProperties2containsService2,Loyalty2, andPrice2
Then create the table like this:
- Create the aggregate variable
Brands. - Create aggregate variables such as
BrandProperties1,BrandProperties2, and so on. - Create a grid table with the
BrandPropertiesvariables in the stub. - Use
Brandsas the banner.
The resulting table shows the variables in the stub split by brand.
You can think of this as the aggregated result of these grid tables:
Service1;Loyalty1;Price1×Brand1Service2;Loyalty2;Price2×Brand2