Restructure Data Wizard (Variables to Cases): Create Index Variables

In this step, decide whether to create index variables. An index is a new variable that sequentially identifies a row group based on the original variable from which the new row was created.

How many index variables should be in the new file? Index variables can be used as grouping variables in procedures. In most cases, a single index variable is sufficient; however, if the variable groups in your current file reflect multiple factor levels, multiple indices may be appropriate.

• One. The wizard will create a single index variable.
• More than one. The wizard will create multiple indices and enter the number of indices that you want to create. The number that you specify affects the next step, in which the wizard automatically creates the specified number of indices.
• None. Select this if you do not want to create index variables in the new file.