13.3 - Finding First and Last Observations
How to insert an observation for total after each by group in SAS data step. - YouTube
How to insert an observation for total after each by group in SAS data step. - YouTube
SAS Help Center: Working with Grouped Data
32.5 - Summarizing and Grouping Data
Data Exploration in SAS - Using Data Step and Proc SQL
SAS Savvy - Proc SQL
FIRST. and LAST. Variables in SAS - How to Select the Variables - DataFlair
13.3 - Finding First and Last Observations
Data Step View of Groups and Roles in SAS Metadata - Selerity
SAS Syntax Rules - SAS Tutorials - LibGuides at Kent State University
SAS Help Center: Processing BY-Groups in the DATA Step
SAS : Detailed Explanation of Proc Means
SAS : First. and Last. Variables
PubTeX output 1999.11.23:1838
The ADDROWID data set option maintains the order of your data when executing a DATA step in SAS® Cloud Analytic Services (CAS) | PROC-X.com
SAS Help Center: Group and Order Variables Using the DATA Step BY Statement
SAS Help Center: Processing BY-Groups in the DATA Step
SAS Help Center: Working with Grouped Data
How to Use FIRST. and LAST. Variables in SAS - Statology
4 Ways to Sort a SAS Data Set in Random Order - SASnrd
SAS Help Center: Controlling DATA Step Processing
