ID Variables
Use this field to specify one or more variables whose values that can, either singly or in combination, provide a unique identifier for each row. These variables are used for various purposes, depending on the context (for example, to generate names for distance variables, or to merge a K matrix with other variables from the input data set) and are copied to the output data set.
The maximum length of the combined Prefix + ID variables is 32 characters minus the number of rows in the data set. If the form of the input data is already a distance matrix, these ID variables are used to label the cluster dendrogram.
To Specify One or More Input ID Variables:
| 8 | Specify an Input SAS Data Set. |
All of the variables in the input data set are displayed in the Available Variables field.
| 8 | Examine the list of available variables. |
| 8 | Highlight one or more variables. |
| 8 | Click  to add the highlighted variable(s) to the ID Variables field, as shown below: |
