The LABEL statement associates a label with the variable Icebox for the duration of the PROC TIMEPLOT step. PROC TIMEPLOT uses the label as the column header in the listing. The TITLE statements specify titles.
   label icebox='Refrigerators';
   title 'Weekly Sales of Stoves and Refrigerators';
   title2 'for the';
   title3 'First Six Weeks of the Year';