Combining and Modifying SAS Data Sets: Examples provides solutions for common tasks involving reshaping or combining SAS data sets. You can save programming hours by using these programs as a model for developing your own. In addition, examples demonstrate basic tasks such as converting a variable's type, working with character strings, and working with SAS time and date values, among others. Data combining and modifying tools used in these examples include DATA step features such as the SET, MERGE, and MODIFY statements; BY-group processing; array processing; and error handling; as well as the SQL procedure. This book is designed for intermediate to advanced SAS programmers who need minimal explanation and who can learn by example. The code is documented in margin notes, with only the most complicated issues explained in more detail. Chapter 1 and some examples direct you to sources of more complete information on the tools and concepts used. Book jacket.