CLASS Statement

The GAM Procedure

CLASS Statement

CLASS variables ;

The CLASS statement names the classification variables to be used in the analysis. Typical class variables are TREATMENT, SEX, RACE, GROUP, and REPLICATION. If the CLASS statement is used, it must appear before the MODEL statement.

Classification variables can be either character or numeric. Class levels are determined from the formatted values of the CLASS variables. Thus, you can use formats to group values into levels. Refer to the discussion of the FORMAT procedure in the SAS Procedures Guide, Version 8, and the discussions for the FORMAT statement and SAS formats in SAS Language Reference: Dictionary, Version 8.

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