datastep - SAS data step with BY variable on unsorted data - Stack Overflow
SAS : First. and Last. Variables
Subsetting and Splitting Datasets - SAS Tutorials - LibGuides at Kent State University
Creating empty SAS dataset from another dataset using Datastep and Proc SQL - YouTube
![Selecting Observations for a New SAS Data Set - Step-by-Step Programming with Base SAS 9.4, Second Edition, 2nd Edition [Book]](https://www.oreilly.com/api/v2/epubs/9781629608068/files/bgcf.png "Selecting Observations for a New SAS Data Set - Step-by-Step Programming with Base SAS 9.4, Second Edition, 2nd Edition [Book]")
Selecting Observations for a New SAS Data Set - Step-by-Step Programming with Base SAS 9.4, Second Edition, 2nd Edition [Book]
SAS Programming Basics
Lesson 7
SAGE Research Methods - Data Analysis Using SAS®
Lesson 14: Data Step Options
Delete Observations with missing values - SAS Support Communities
SAS Help Center: OBS= Data Set Option
Lesson 16
Lesson 18: Generating Data With Do Loops
SAS Basics - Part 1
SAS Variables - Javatpoint
SAS Help Center: OBS= Data Set Option
Creating Multiple Observations From Single Observation In SAS - 9TO5SAS
Lesson 7
SAS Data Step Update Statement Example - SASnrd
How to Emulate DESCENDING BY Variables in DATA Step Code that Runs Distributed in SAS® Viya™ - SAS Users
Subsetting Observations from Large SAS® Data Sets
Data Set Options In SAS - 9TO5SAS
QUESTION 2 (33 marks) Write a program that will | Chegg.com
8 Ways To Count The Number Of Observations In A SAS Dataset And Pass It Into A Macro Variable - 9TO5SAS
Lesson 7
14.1 - The FIRSTOBS= and OBS= options
