Cluster Variables
Use this field to specify those variables that identify clusters in a clustered sample design. The combinations of categories of these variables define the clusters in the sample.
Note: If there are Strata Variables selected, clusters are nested within strata.
To Specify One or More Cluster Variables:
| 8 | Specify the Input SAS Data Set. |
All of the variables in the specified input data set are displayed in the Available Variables field.
| 8 | Examine the list of available variables. |
| 8 | Highlight the variable whose values identify clusters. To highlight multiple variables at once, hold down while left-clicking on them. |
| 8 | Click  to add the highlighted variable(s) to the Cluster Variables field, as shown below: |
