DATA Step or PROC? It depends...
Which SAS technique should you use? Consider how often the program is to be run, your comfort level and more.
Tag: sas books
Using SAS to score a test
If you have ever needed to score a multiple-choice test, this blog is for you. Even if you are not planning to score a test, the techniques used in this example are useful for many other programming tasks. The example I am going to present assumes the answer key and
Unexpected results from missing values with PROC SQL
SAS SQL handles missing values differently than the ANSI standard for SQL. PROC SQL follows the SAS convention for handling missing values: numerical missing values are always interpreted as less or smaller than all nonmissing values. My first blog showed that missing values can be troublemakers in non-grouped descriptive statistics.