GROUPS Subcommand (DISCRIMINANT command)

GROUPS specifies the name of the grouping variable, which defines the categories or groups, and a range of categories.

• GROUPS is required and can be specified only once.
• The specification consists of a variable name followed by a range of values in parentheses.
• Only one grouping variable may be specified; its values must be integers. To use a string variable as the grouping variable, first use AUTORECODE to convert the string values to integers and then specify the recoded variable as the grouping variable.
• Empty groups are ignored and do not affect calculations. For example, if there are no cases in group 2, the value range (1, 5) will define only four groups.
• Cases with values outside the value range or missing are ignored during the analysis phase but are classified during the classification phase.