Preface to the Second Edition
Although this book is titled Cody’s Data Cleaning Techniques Using SAS, I hope that it is more than that. It is my hope that not only will you discover ways to detect data errors, but you will also be exposed to some DATA step programming techniques and SAS procedures that might be new to you.
I have been teaching a two-day data cleaning workshop for SAS, based on the first edition of this book, for several years. I have thoroughly enjoyed traveling to interesting places and meeting other SAS programmers who have a need to find and fix errors in their data. This experience has also helped me identify techniques that other SAS users will find useful.
There have been some significant changes in SAS since the first ...
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