Mastering the SAS DS2 Procedure - Jordan, Mark

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Résumé :
Enhance your SAS data-wrangling skills with high-precision and parallel data manipulation using the DS2 programming language. Now in its second edition, this book addresses the DS2 programming language from SAS, which combines the precise procedural power and control of the Base SAS DATA step language with the simplicity and flexibility of SQL. DS2 provides simple, safe syntax for performing complex data transformations in parallel and enables manipulation of native database data types at full precision. It also covers PROC FEDSQL, a modernized SQL language that blends perfectly with DS2. You will learn to harness the power of parallel processing to speed up CPU-intensive computing processes in Base SAS and how to achieve even more speed by processing DS2 programs on massively parallel database systems. Techniques for leveraging internet APIs to acquire data, avoiding large data movements when working with data from disparate sources, and leveraging DS2's new data types for full-precision numeric calculations are presented, with examples of why these techniques are essential for the modern data wrangler. Here's what's new in this edition: how to significantly improve performance by using the new SAS Viya architecture with its SAS Cloud Analytic Services (CAS) how to declare private variables and methods in a package the new PROC DSTODS2 the PCRXFIND and PCRXREPLACE packages While working though the code samples provided with this book, you will build a library of custom, reusable, and easily shareable DS2 program modules, execute parallelized DATA step programs to speed up a CPU-intensive process, and conduct advanced data transformations using hash objects and matrix math operations. This book is part of the SAS Press Series.

Biographie:
A retired career firefighter/EMT-paramedic/special rescue technician: From a young adolescent to a young adult, he pursued many hobbies and adventures. He was frequently off to some adventure, spelunking, technical rock climbing, and backpacking. Canoeing and kayaking the whitewater rapids of many classes. He was one for an adventure over the usual social structures of those times.When he was not off on one of his pursuits of adventure, he was an avid reader of many of the authors from the science fiction genre. Isaac Asimov, Ray Bradbury, Arthur C. Clarke, Philip K. Dick, Robert Heinlein, and Andre Norton, to name a few.He pursues an interest in amateur astronomy and astrophotography, leading him to build a small roll-off roof observatory in the backyard. He also still pursues an interest in many sciences related to the study and theory of astronomy. Mark is an avid study of world and military history. These interests are most his reading interests and research.The many realities of life encountered in his fire, rescue, and EMS career helped to shape his appreciation for the sanctity of life and its frailty as well. He tries to apply some of these lessons in his writing and fictional worlds.Never go to bed mad at the ones you love! Life's uncaring fate could strip them from you tomorrow. Let go of the petty things and try to leave a legacy behind you of life and good works. This is the only life you get on this Earth, so use it wisely. I've helped to bring life into this world and felt the humbling experience of seeing it leave abruptly. (Mark Jordan, Author and retired career Fire, Rescue, and EMS professional)...