Identifies class variables for the table. Class variables determine the categories that PROC TABULATE uses to calculate statistics. Tip: You can use multiple CLASS statements. Tip: Some CLASS ...

Although the snooze button is probably the most commonly used button on an alarm clock, even a simple AlarmClock class needs a few more features. For instance, you might want to control how long the ...

specifies that, at most, the first n characters of a CLASS variable label be used in creating labels for the corresponding dummy variables. specifies the sorting order for the levels of classification ...