The DO Loop
Statistical programming in SAS with an emphasis on SAS/IML programs
One of the fundamental principles of computer programming is to break a task into smaller subtasks and to modularize the program by encapsulating each subtask into its own function. I have written many blog posts over the years about how to define and use functions in the SAS/IML language. I
A feature of SAS/IML 13.2 (shipped with SAS 9.4m2, Aug 2014) is the ability to execute SAS/IML statements that are in a file. The feature is implemented by the new EXECUTEFILE subroutine. This feature is similar to the CALL EXECUTE statement. The difference is that the EXECUTEFILE subroutine reads, parses,
A SAS programmer asked for a list of SAS/IML functions that operate on the columns of an n x p matrix and return a 1 x p row vector of results. The functions that behave this way tend to compute univariate descriptive statistics such as the mean, median, standard deviation, and quantiles. The following