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We all have some sort of intuitive idea of what time series data is – it’s a bunch of measurements or observations that are marked by a time stamp – we know when the measurement was taken, as well as what was measured. This natural temporal ordering of the data
This week's SAS tip is from Ron Cody and his book Cody's Data Cleaning Techniques Using SAS, Second Edition. Ron is the popular author of several bestselling SAS books and has been a SAS user since 1977. Visit Ron's author page for lots of bonus content, including a free chapter from his
“Maybe math is not love-at-first-sight for you, but it pays to flirt with it a little,” says Udo Sglavo. As a principal analytical consultant in the operations research R&D group at SAS, he’s not your typical mathematician. Udo arrived at his career with a gentle tug from family members and
As part of the Friday's Innovation Inspiration (FII) series, I've decided to present a few SAS techniques and problem solvers that you labeled as innovative or 'inspirational'. These are pretty easy to find: I've done some digging through the Best Contributed Papers. I know you haven't read them all, so
It’s no secret that analytics helps large organizations determine what offers are best for their customers and their business, but can powerful analytics be harnessed for small and medium business success? For the answer, I turned to Oberweis Dairy, a 90-year-old mid-sized business that has grown from a family-owned dairy farm
K-12 education reform and policy has seen a recent surge in the cinema with "Waiting for Superman," "The Lottery," and this fall’s "Won't Back Down.” However, if you can’t bring yourself to spend $9.00+ at the box office, or (like me) have a hard time finding babysitters to even get
You’ve just started a new job as SAS administrator, and there’s no documentation. How do you know which SAS products are installed? Where they are deployed? Where do the data and programs reside? Brian Varney tells us that SAS administrators often run into undocumented environments whenever they begin working in a new
The determinant of a matrix arises in many statistical computations, such as in estimating parameters that fit a distribution to multivariate data. For example, if you are using a log-likelihood function to fit a multivariate normal distribution, the formula for the log-likelihood involves the expression log(det(Σ)), where Σ is the
Over the past month or more, I have been in a conversation with SAS user James Marcus, on creation of some new displays for visual communication of uncertainty. These include display of densities using a "Violin" plot, "Density Strips" and more. With his permission, I can share some of the
I work on a variety of projects at SAS, most of which require some level of team collaboration in source management systems. Due to the many technologies that we work with, SAS developers use different source management tools for different purposes. I've got projects in CVS, Subversion, and Git. When
“Frankenstorm” is what the U.S. National Weather Service is calling the combination of Hurricane Sandy, an early winter storm heading east, and a blast of arctic air from the North. SAS headquarters is located in the middle of the U.S. east coast ... and we barely missed being the bulls-eye for this
Our SAS Users Group regional road trip is coming to an end. Final destination -Baltimore, MD. That will be the site of the Northeast SAS Users Group regional conference November 11-14. More than 500 users are expected to come together to share ideas, learn from experts, and increase their SAS
BASE SAS users are already familiar with the autoexec file. This is a .sas file that typically resides in the installation folder of the SAS executable. Instructions for setting it up in UNIX, Windows, and other environments is readily available on the SAS website. In SAS BI configurations there are
This week's tip is from Professor Willbann D. Terpening and his book Statistical Analysis for Business Using JMP. If you're intrigued by the following excerpt, visit Terpening's author page for additional bonus book content. And take a look at his previously featured tip The Student t-distribution, on this blog: The following excerpt is from
“We may not see it but math is everywhere around us,” says Paul T. Savarese, Technical Support Statistician at SAS. You don’t have to be a statistician to enjoy this interview, in which Savarese discusses target shooting, Jay Leno and Guinness beer – and ties it all back to the fascinating subject