The TTEST Procedure

Syntax: TTEST Procedure

The following statements are available in the TTEST procedure:

PROC TTEST <options> ;
CLASS variable ;
PAIRED variables ;
BY variables ;
VAR variables </ options> ;
FREQ variable ;
WEIGHT variable ;

No statement can be used more than once. There is no restriction on the order of the statements after the PROC TTEST statement.