Introduction You've learned how to create a SAS data set from raw data that is stored in an external file. You've also learned how to subset observations and how to assign values to variables. This lesson shows you additional techniques for creating and managing variables. In this lesson, you learn how to create sum variables, assign variable values conditionally, select variables, and assign permanent labels and formats to variables.

 

Setting Up Filerefs for Practices in This Lesson

Time to Complete This lesson contains pages and takes approximately 1 hour to complete.

Objectives In this lesson, you learn to create variables that accumulate variable values initialize values of sum variables assign values to variables conditionally specify an alternative action when a condition is false specify lengths for variables delete unwanted observations select variables assign permanent labels and formats.

Prerequisites Before taking this lesson, you should complete the following lessons: .