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“Dear Cat, In a repeated measures drug study, I am unsure what to do with the baseline measurement. Since it is one of the time points in my study, I feel like I should use it as one of the dependent variable measurements. But I have seen analyses where baseline
If you write an n x p matrix from PROC IML to a SAS data set, you'll get a data set with n rows and p columns. For some applications, it is more convenient to write the matrix in a "long format" with np observations and three columns. The first
In recent conversations with many SAS users at NESUG, SESUG and WUSS, a pattern emerges on the question of creating graphs with SAS or R. Many SAS users are aware of the new graph features in SAS that create high quality graphs with minimum fuss. But, many have not actually used
Are you in the market for a new car? Perhaps you are researching how the various parameters of cars match up to each other? Well, in SAS 9.4 Maintenance 1 release, ODS Graphics will support a new versatile plot: the polygon plot. As the name suggests, it lets you draw
This is a continuing topic of the SAS Administration and Performance blog series. In the last edition, I discussed why you need to do a technical assessment prior to planning your SAS deployment. Yes, this step takes time, but you’ll find it far easier to implement the suggested tuning guidelines
The holiday season is here, and you're probably wondering how to shop for that picky SAS Enterprise Guide user on your gift list. I've got a few ideas for you, and the price is right! Here are links to 11 custom tasks that are free to download, easy to install,
. . . getting to know all about you! Everyone says it—getting to know other SAS users is the best part of a SAS conference. The other “best part” are the resources available in the exhibits and demo areas. I’d have to agree. Well, this year’s organizers at the 2013
What's your favorite part of attending SAS Global Forum? With the many presentations, networking event and valuable SAS knowledge available, many attendees may find it difficult to pick just one thing. I asked the Best Contributed Paper winners from SAS Global Forum 2013 to share both their most memorable moment from
For several years, there has been interest in calling R from SAS software, primarily because of the large number of special-purpose R packages. The ability to call R from SAS has been available in SAS/IML since 2009. Previous blog posts about R include a video on how to call R
Wavelet analysis is an exciting and relatively new field of study that enables one to extract underlying patterns either from spatially varying or temporally varying data. Pixel values representing the relative brightness and color that constitute an image are an example of spatially varying data, and daily variations of financial
In reference to a previous article on Violin Plots, a reader asked about creating comparative mirrored histograms to compare propensity scores. While I had my own understanding of "Mirrored Histograms", I also looked this up on the web. Google showed many cases of two histograms back to back, either horizontally or vertically.
With the others, I filed into the school gymnasium, my super zoom camera lens at the ready and a nervous smile on my face. Across the room, I caught a glimpse of my unsmiling daughter, and my apprehension grew about how this awards day program would play out for her.
If you’re not an expert on encryption, have no fear! SAS 9.4 has introduced ways to bring stronger encryption to your SAS deployment. The good news is that SAS/SECURE is now a part of Base SAS when you upgrade to SAS 9.4 and is not a separately licensed product anymore.
The holidays are upon us! As you may have experienced, Thanksgiving often serves as the starter pistol for the holiday weight gain marathon. Don’t let holiday collateral damage be the impetus for your New Year’s resolutions this year. A little planning and mindfulness can keep the joy in your season
When I call R from within the SAS/IML language, I often pass parameters from SAS into R. This feature enables me to write general-purpose, reusable, modules that can analyze data from many different data sets. I've previously blogged about how to pass values to SAS procedures from PROC IML by
