In SAS, how can I conduct a t-test on data sorted by variables?
In SAS, to conduct a t-test on data sorted by variables, use the
BY statement in the
TTEST procedure. The
following example tests gender difference in weight in each area:
You must sort the data by the variable
area before using
BY statement in
PROC TTEST. The
CLASS statement specifies a binary group variable, and
VAR statement indicates the variable(s) to be
If you have questions about using statistical and mathematical software at Indiana University, email UITS Research Analytics (formerly known as the Stat/Math Center). Research Analytics is located on the IU Bloomington campus at Woodburn Hall 200, and is open for consultation by appointment Monday-Friday 9am-5pm. For more, visit Research Analytics on the web, or call 812-855-4724 (IUB) or 317-278-4740 (IUPUI).
Last modified on September 19, 2012.