Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - COMPRESS Function (Remove Characters from String, a

The video tutorial explains the use of the compress function in SAS, focusing on its ability to remove unwanted characters and spaces from strings. It demonstrates the function's application on a data set containing phone numbers, showing how to eliminate dashes, parentheses, and spaces. The tutorial covers the basic use of the compress function and advances to using additional arguments for more complex data cleaning tasks.

What is the significance of the dollar sign in the variable name 'phone N'?

Explain the difference in output between the original column and the columns after applying the compress function.