Chapter 4: Creating Data Sets from Hash Objects and Updating Contents of Hash Objects
Creating a Data Set from a Hash Object
Adding, Modifying, and Removing Data from a Hash Object
Defining the Key Structure in a Hash Object
Understanding How to Specify the KEY and DATA Argument Tags
Identifying the Variables That the OUTPUT Method Writes to a Data Set
Understanding the Interaction between DATA Step Variables and Hash Object Data Items When Replacing Data in a Hash Object
Replacing Key Item Values When a Key Item Is Also a Data Item
Comparing the DATA Statement and the OUTPUT Method
Application Example: Finding the Unique Values of a Variable in a Data Set
Application Example: Ordering Observations by Variables Not Saved to a Data Set Created ...
