Use this field to specify the numeric variables whose rows are to be clustered.Caution: Specifying a very large number of variables or using a data set with a large number of observations can prohibitively increase the time needed to run this process.All of the variables in the input data set are displayed in the Available Variables field.
Highlight one or more variables whose rows you want to cluster. To highlight multiple variables at once, hold down while left-clicking on them.
Click to add the highlighted variable(s) to the Variables Whose Rows are to be Clustered field, as shown below: