Did you know: For 13 percent of car buyers a new vehicle without internet access is a no-go? Obviously, no-go means no-buy. Thirteen percent! If I have ever seen a market demand, it is this. For sure, the industry will respond to that. The management consulting company Bain even expects
Heat maps are a great way to visualize the bi-variate distribution of data. Traditionally, a heat may may have two numeric variables, placed along the X and Y dimension. Each variable range is sub divided into equal size bins to create a rectangular grid of bins. The number of observations
In 2015 Foresight: The International Journal of Applied Forecasting will celebrate 10 years of publication. From high in his aerie in the Colorado Rockies, here is Editor-in-Chief Len Tashman's preview of the current issue: In this 35th issue of Foresight, we revisit a topic that always generates lively and entertaining
If you’ve used SAS Environment Manager, you know what kind of information it’s capable of providing – the metrics that show you how the resources in your SAS environment are performing. But what if it could do more? What if it could automatically collect and standardize metric data from SAS
We seem to hear about new diets almost on a weekly basis. Many of these diets will come and go, but here are some that have been around for a very long time. There are also heated debates around what diet is the best: Vegetarian, Vegan, Paleo, Low Carb, High
What is kurtosis? What does negative or positive kurtosis mean, and why should you care? How do you compute kurtosis in SAS software? It is not clear from the definition of kurtosis what (if anything) kurtosis tells us about the shape of a distribution, or why kurtosis is relevant to
Companies like Amazon, Netflix, Zappos and Pandora have changed what consumers expect from a brand – they want brands to “know” what they want before they ask for it. To provide those kinds of personalized products and services, brands have to collect and analyze huge quantities of customer and industry
In a city built on hedging your bets, it is fitting that the Analytics 2014 conference kicked off Monday in Las Vegas with a look at all the unscientific ways people try to predict the future. John Elder, Founder and President of Elder Research, Inc., entertained the audience with examples of how
Europol, the law enforcement agency of the European Union, in its recently released 2014 Internet Organized Crime Threat Assessment (iOCTA), cited a report by U.S. security firm IID that predicts that the first “online murder” will occur by year end, based on the number of computer security system flaws discovered
Welcome to the blog “Operations Research with SAS: Optimize, Simulate, Understand.” For those of you without an operations research background, a brief explanation: operations research (OR) is the study of the operations of systems, with a focus on making them function more efficiently and more effectively. The overall goal of
The Chicago weather cooperated for MWSUG 2014 with nice crisp fall temperatures, clear skies and beautiful sunrises over the lake. Aside from the weather, here are my five favorite memories of MWSUG 2014: 1. Location-location-location. The location and venue were fabulous! Not only were we along the Chicago River with a beautiful
A few years ago I wrote an article that shows how to compute the log-determinant of a covariance matrix in SAS. This computation is often required to evaluate a log-likelihood function. My algorithm used the ROOT function in SAS/IML to compute a Cholesky decomposition of the covariance matrix. The Cholesky
Getting consistent group colors across different data sets for a graph is a common topic of interest. Recently a user wrote in to ask how to ensure that specific groups "values" for a bar chart get specific colors. The group values may arrive in different order, or some may
As this article on the mythical data scientist describes, many people call this special kind of analytical talent "unicorns," because the breed can be so hard to find. In order to close the analytical talent gap that McKinsey Global Institute and others have predicted, and many of you experience today, SAS launched
Beginning with the first maintenance of SAS 9.4, you have the ability to define your own symbol markers using the SYMBOLCHAR and SYMBOLIMAGE statements. With these statements you can select a Unicode value or you can select an image file that exists on the local file system—making the possibilities for
How many times a day do you search (or “Google”) how to do something with a product, the best ways to perform “X,” or for help with a problem? Chances are it’s a lot, and when you do, you likely land on a forum where your peers have posted answers
My previous blog post describes how to implement Conway's Game of Life by using the dynamically linked graphics in SAS/IML Studio. But the Game of Life is not the only kind of cellular automata. This article describes a system of cellular automata that is known as Wolfram's Rule 30. In
I always recommend looking at data in several different ways, to get a more complete picture of what's really going on - such is the case with the member 'ratings' on dating websites. Let's take a look at some data from a different angle... In a recent blog post, I
In 2011, the passage of the federal Justice Reinvestment Act (JRA) brought significant changes to North Carolina’s criminal sentencing practices, particularly in relation to the supervision of offenders released into the community on probation or post-release supervision. A recent New York Times article highlighted how NC has used the implementation
The Mid-West SAS Users' Group conference in Chicago was a great success, with over 400 attendees and great weather. The conference hotel was in downtown with nice view of the river and a stroll down "Magnificent Mile". The city does a great job with the flower beds down Michigan Ave., along
In this post we dig deeper into the fourth recommended practice for securing the SAS-Hadoop environment through Kerberos authentication: When configuring SAS and Hadoop jointly in a high-performance environment, ensure that all SAS servers are recognized by Kerberos. Before explaining the complex steps in connecting to secure Hadoop within a
I recently caught up with Dr. Tom Davenport, analytics thought-leader and author of Big Data @ Work, in Dublin, where we talked about big data, the Internet of Things and Hadoop. I'll be sharing the conversation here with you in two parts. You'll find part one below, and you can check
Like many strong relationships, Yoga and I did not hit it off right away. I was in college enjoying strenuous exercise. I’d run, take step, and get in some abs all in one day. I was cardio crazy. There was nothing better than heading out on the trails for a
Do you have too many models to build, too many to manage, too few analytic resources or too much data? A Model Factory may be your answer. The mindset of analytics is changing. This represents the transformation from a “craftsman” dominated culture in which multiple weeks were spent cycling through
A colleague jokingly teases me whenever I write a blog that demonstrates how to write fun and exciting programs by using SAS software. "Why do you get to have all the fun?" he mock-chides. Today I'm ready to face his ribbing, because this article is about Conway's Game of Life
With Amazon Prime's 2-day shipping, I seldom go to physical stores any more. How do they deliver items so quickly? Let's analyze some data to find out... There are very few services/memberships that I truly feel like I'm getting "a good deal" for my money - and Amazon Prime is
Hello, 1992 called. They want their DDE Excel automation back. Perhaps the title of this article is too pessimistic. Of course your SAS programs that use DDE (dynamic data exchange) can still work perfectly, as long as you situate your SAS software and its DDE "partner" (usually Microsoft Excel) to
This post is a nod to one of my favourite plays, The Importance of Being Earnest by Oscar Wilde. As the title ‘Data Scientist’ becomes more common, what can we gain about the importance of titles and labelling from this century old play? For those that haven't read it, the
➤ DISCLOSURE! In June 2018 Google introduced changes to the way it handles its Maps platform. They now require API key in order to embed a map, plus Google Maps "projects" must now be associated with a billing account. Unless these new Google rules are met, Google maps described in
The tail of a probability distribution is an important notion in probability and statistics, but did you know that there is not a rigorous definition for the "tail"? The term is primarily used intuitively to mean the part of a distribution that is far from the distribution's peak or center.
