English

Rick Wicklin 0
Skew this

The skewness of a distribution indicates whether a distribution is symmetric or not. A distribution that is symmetric about its mean has zero skewness. In contrast, if the right tail of a unimodal distribution has more mass than the left tail, then the distribution is said to be "right skewed"

Data Visualization
Sanjay Matange 0
Splines

Many users of SGPLOT and GTL know how to mix and match various plot statements to create graphs, sometimes in ways not originally intended.  You are also aware that you can go a step beyond, and use these systems to create completely non-standard graphs such as the Spiral Plot, the Polar

Kenneth Sanford 0
Econometric modeling: your questions answered

Several weeks ago, I led a SAS Talks webinar on SAS/ETS emphasizing the many recent changes to the software. SAS/ETS, for those unfamiliar with the product, is SAS’s suite of econometrics, time series and forecasting tools and algorithms. While we covered a substantial amount of material in the talk, there

Rick Wicklin 0
The frequency of letters in an English corpus

It's time for another blog post about ciphers. As I indicated in my previous blog post about substitution ciphers, the classical substitution cipher is no longer used to encrypt ultra-secret messages because the enciphered text is prone to a type of statistical attack known as frequency analysis. At the root

Work & Life at SAS
Amanda Pack 0
Happiness and Gratitude

Today, I'd like to introduce Celeste Cooper-Peel, the RFC's Wellness Supervisor.  Celeste has been in the health and wellness field for twenty years. After receiving her Masters in Health Education from East Carolina University, she ventured into the mind/body world receiving training in Mindfulness-Based Stress Reduction and Yoga. Shortly after,

SAS Events
Sara Jones, CMP 0
Your SAS Global Forum 2015 draft kit

It’s my favorite time of the year, draft time!  NFL and Fantasy Football fans, I don’t mean THAT draft, but similar.  It’s what I will call the #SASGF15 draft! The time of year when the best and the brightest, the most knowledgeable, passionate, and inspirational SAS users submit ideas around

Data Visualization
Sanjay Matange 0
PharmaSUG-China 2014

The Third PharmaSUG-China conference was held in Beijing last week, and I had the pleasure to attend this excellent conference along with a record number of attendees. On Thursday, I presented two 1/2 day seminars on ODS Graphics.  One titled "Advanced Topics in GTL" and another titled "Complex Clinical Graphs

Data Visualization
Sanjay Matange 0
Binary Response Graph

Often we need to plot the response values for binary cases of a classifier.  The graph below is created to simulate one seen at http://www.people.vcu.edu/ web site of the shock index for subjects with or without a pulmonary embolism.  In this case, the data is simulated for illustration purposes only. There

Rick Wicklin 0
Order variables by values of a statistic

When I create a graph of data that contains a categorical variable, I rarely want to display the categories in alphabetical order. For example, the box plot to the left is a plot of 10 standardized variables where the variables are ordered by their median value. The ordering makes it

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