Here's a quick tip to keep in mind when you write SAS/IML programs: although the SAS/IML documentation lists about 300 functions that are built into the SAS/IML language, you can also call hundreds of functions in Base SAS. Furthermore, you can pass in SAS/IML vectors for arguments to the functions.
Did you know that you can define "abbreviations" in the SAS enhanced editor? These handy little shortcuts can save you a lot of typing. For example, I have an abbreviation for the string _iml. Whenever I type _iml, the editor prompts me to replace those four characters with the following
Here is a little trick to file away. Given a row vector of zeros and ones, thought of as representing a number in base 2, the following SAS/IML statements compute the decimal value of that vector. proc iml; x = {1 0 0 1 1 1}; /* number in base
