Parameters | Workflows | ID Variables

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:
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All of the variables in the input data set are displayed in the Available Variables field.
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Click to add the highlighted variable(s) to the ID Variables field, as shown below: