The QUANTLIFE Procedure

CLASS Statement

  • CLASS variables </ TRUNCATE>;

The CLASS statement names the classification variables to be used in the model. Typical classification variables are Treatment, Sex, Race, Group, and Replication. If you use the CLASS statement, it must appear before the MODEL statement.

Classification variables can be either character or numeric. By default, class levels are determined from the entire set of formatted values of the CLASS variables.

In any case, you can use formats to group values into levels. See the discussion of the FORMAT procedure in the Base SAS Procedures Guide and the discussions of the FORMAT statement and SAS formats in SAS Formats and Informats: Reference.

You can specify the following option in the CLASS statement after a slash (/):


specifies that class levels be determined by using only up to the first 16 characters of the formatted values of CLASS variables.