Complete SAS Programming Guide - Learn SAS and Become a Data Ninja - Substr Function

The video tutorial explains the substring function, focusing on its syntax and arguments: source, position, and number of characters to read. It demonstrates how to extract specific data from a date variable using the substring function. The tutorial also covers the left side application of substring, showing how to modify parts of a string, such as changing a year in a date. The video aims to make the concept clear and easy to understand through examples.

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