SAS Syntax Rules - SAS Tutorials - LibGuides at Kent State University
Data Exploration in SAS - Using Data Step and Proc SQL
Handbook of SAS® DATA Step Programming - 1st Edition - Arthur Li - R
Data Exploration in SAS - Using Data Step and Proc SQL
SAS : First. and Last. Variables
SAS Help Center: BY-Group Processing in CAS
SAS Help Center: Working with BY Groups and IF-THEN Processing
BY-Group Processing in the DATA Step : How the DATA Step Identifies BY Groups
Data Step View of Groups and Roles in SAS Metadata - Selerity
SAS : Detailed Explanation of Proc Means
FIRST. and LAST. Variables in SAS - How to Select the Variables - DataFlair
SAS Help Center: Group and Order Rows Using the DATA Step BY Statement
SAS Data Studio Code Transform (Part 2) - SAS Users
4 Ways to Calculate the Weighted Average (by Group) in SAS
Subsetting and Splitting Datasets - SAS Tutorials - LibGuides at Kent State University
13.3 - Finding First and Last Observations
Sas Talk To R Users Group
Group and Order Variables Using the DATA Step BY Statement :: SAS® Cloud Analytic Services 3.1: Accessing and Manipulating Data
How to Find the Minimum Value of a Variable (by Group) in SAS
SAS : First. and Last. Variables
SAS Help Center: Processing BY-Groups in the DATA Step
