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Rick Wicklin 0
Create dummy variables in SAS

A dummy variable (also known as indicator variable) is a numeric variable that indicates the presence or absence of some level of a categorical variable. The word "dummy" does not imply that these variables are not smart. Rather, dummy variables serve as a substitute or a proxy for a categorical

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Rick Wicklin 0
What is a moving average?

A moving average (also called a rolling average) is a statistical technique that is used to smooth a time series. Moving averages are used in finance, economics, and quality control. You can overlay a moving average curve on a time series to visualize how each value compares to a rolling

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Rick Wicklin 0
Compute a weighted mean in SAS

Weighted averages are all around us. Teachers use weighted averages to assign a test more weight than a quiz. Schools use weighted averages to compute grade-point averages. Financial companies compute the return on a portfolio as a weighted average of the component assets. Financial charts show (linearly) weighted moving averages

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Brenna 0
5 new SAS Press titles for the new year

Whether your New Year’s resolution is to get SAS certified or to become a more advanced SAS programmer, we’ve got you covered with these upcoming SAS Press books, many of which will be making their bookshelf debut at SAS® Global Forum 2016 in fabulous Las Vegas! The SAS® Programmer’s PROC

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Art Carpenter 0
You’re not using PROC REPORT?

As I visit my clients, it sometimes surprises me when they avoid the use of PROC REPORT.  “It’s too different”.  Even those that do use it, often fail to take advantage of the procedure’s power by ignoring the compute block.  Yes this procedure is different from any other. Yes using

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Maggie Miller 0
25 Fun Facts about SAS Press authors

You’ve read their books. You’ve probably even met them at conferences. But now, we’re revealing another side of our beloved SAS authors in this list of fun facts. Prepare to be surprised. Hint – one of the authors swims with sharks. Tricia Aanderud Tricia has over 100 jokes memorized -

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Cindy Puryear 0
How my SAS Press book was born

This guest blog post comes from Dr. David Dickey, one of our original SAS Press authors. Hope you enjoy! In the late 1970s, shortly after SAS was founded, I was approached by Herbert Kirk and John  Brocklebank from SAS to put together a course on time series.  This was reasonably

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