A colleague asked, "How can I enumerate the levels of a categorical classification variable in SAS/IML software?" The variable was a character variable with n observations, but he wanted the following: A "look-up table" that contains the k (unique) levels of the variable. A vector with n elements that contains
Over at the SAS/IML Discussion Forum, there have been several posts about how to call a Base SAS functions from SAS/IML when the Base SAS function supports a variable number of arguments. It is easy to call a Base SAS function from SAS/IML software when the syntax for the function
Andrew Ratcliffe posted a fine article titled "Inadequate Mends" in which he extols the benefits of including the name of a macro on the %MEND statement. That is, if you create a macro function named foo, he recommends that you include the name in two places: %macro foo(x); /** define
