Скачать или смотреть How to identify first and last observation in each group? | class - 14 | SAS Programming tutorials

Chapters in this video:
0:00 - 0:52 - Introduction and Agenda
0:53 -1:43 - Answering questions about groups
1:44 - 3:10 - Processing sorted data in groups
3:11 - 7:12 - Demo: Identifying the first and last observation in each group
7:13 - 11:05 - Sub setting Observations in the Execution phase
11:06 - 14:28 - Demo: Creating an accumulating variable within groups
14:29 - 15:52 - Using multiple BY Variables
15:53 - 16:27 - Conclusion

Welcome to this SAS Programming tutorial where you'll learn how to identify the first and last observation in each group and create an accumulating variable. In many data analysis projects, it's important to be able to group data by a specific variable and perform operations on each group separately. SAS provides powerful tools for grouping data, and in this tutorial, we'll explore how to use the first. and last. functions to identify the first and last observations within each group.

By the end of this tutorial, you'll have a solid understanding of how to identify the first and last observation in each group and create an accumulating variable in SAS. This knowledge will be useful for a wide range of data analysis projects, including time series analysis, survey data analysis, and more.

So, if you're ready to level up your SAS programming skills, then hit the play button and let's get started!