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 the BY statement in PROC TTEST. The
CLASS statement specifies a binary group variable and the
VAR statement indicates variable(s) to be compared.
For more information about statistical and mathematical software, email the UITS Stat/Math Center, visit the center's web page, or phone 812-855-4724 (IUB) or 317-278-4740 (IUPUI). The center is located in Bloomington at 410 N. Park Avenue, and is open for consultation by appointment Monday-Friday 9am-5pm.
Last modified on December 22, 2008.







