If you create a scatter plot of highly correlated data, you will see little more than a thin cloud of points. Small-scale relationships in the data might be masked by the correlation. For example, Luke Miller recently posted a scatter plot that compares the body temperature of snails when they
Here at SAS Press, we offer a strong, stable publishing team with over 55 years of combined experience. But as a potential author (or even current one) or fan of our press, you might want to get a better feel for the people behind the book. Thus a new feature,
The SIFMA Financial Services Technology Leaders Forum and Expo came to Midtown New York City in mid-June to more fanfare than in the past few years with speakers including Jim Cramer, Art Cashin, Gillian Tett, senior executives from capital markets firms including NYSE Euronext and DTCC, and regulators from the
In a previous article, I discussed random jittering as a technique to reduce overplotting in scatter plots. The example used data that are rounded to the nearest unit, although the idea applies equally well to ordinal data in general. The act of jittering (adding random noise to data) is a
Last week, I attended the International Center for Leadership in Education’s Model Schools Conference in Nashville, TN, where I learned about many forward-thinking education initiatives taking place across the country. My colleagues and I also had the privilege of facilitating a SAS(r) EVAAS for K-12 presentation from two principals at
Jittering. To a statistician, it is more than what happens when you drink too much coffee. Jittering is the act of adding random noise to data in order to prevent overplotting in statistical graphs. Overplotting can occur when a continuous measurement is rounded to some convenient unit. This has the
Last week, I had the pleasure to attend a great session with noted speaking authority Bart Queen. The session was titled, “The Power of Many” and it included 4 communication goals and tons of other great tips on how to drive your message through the use of panel discussions. Here
So we all know that "35" is the "new 24". Or something like that. In any event, my incredible employer SAS celebrates its 35th anniversary today and has retained its youthful cutting-edge viability while combining it with the wisdom that comes with longevity. And the company culture within SAS reflects
The area under a density estimate curve gives information about the probability that an event occurs. The simplest density estimate is a histogram, and last week I described a few ways to compute empirical estimates of probabilities from histograms and from the data themselves, including how to construct the empirical
Would you like to have a clearer understanding of your customers? If so, this week's featured SAS Author's Tip delivers the goods. SAS Press author Randy Collica is a Senior Solutions Architect for SAS and his book CRM Segmentation and Clustering: Using SAS Enterprise Miner contains a lot of how-to
Contributed by Amy Prince, SAS Marketing Operations Same stuff, different year is what comes to mind following our first Power Series session in Minneapolis earlier this month. What’s different this year? The SAS Power Series is a NEW, highly interactive, dynamic few hours designed to address some of the biggest
In my statistical analysis of coupons article, I presented a scatter plot that includes the identity line, y=x. This post describes how to write a general program that uses the SGPLOT procedure in SAS 9.2. By a "general program," I mean that the program produces the result based on the
Have you written a popular SAS Global Forum paper? Have you shared a winning case study with your colleagues? Have you talked about a cool, new feature you found in SAS? Well, share it with the world! SAS Press can help you share your knowledge and expertise worldwide. We’ve published
With just a couple of weeks to go, things are well underway for this year's Convention. As ever, it'll be a few days dedicated to SAS professionals, held in the heart of the Buckinghamshire countryside. Fingers crossed for great weather; not always guaranteed in July! We'll be live blogging and
Contributed by Bob Messier, Senior Director of Business Analytics, SAS Last week I participated in the SAS Power Series event in Minneapolis. It included about 23-30 folks representing a broad range of industries. Analytics was the central topic of the event. What is analytics? How do you get your organization
With just a couple of weeks to go, things are well underway for this year’s SAS Professionals Convention. As ever, it’ll be a few days dedicated to SAS professionals, held in the heart of the Buckinghamshire countryside. Fingers crossed for great weather; not always guaranteed in July! We’ll be live
In Base SAS you can use the DATASETS procedure to determine the SAS data sets in a library, and you can use the DELETE statement to delete data sets. Did you know that you can do the same operations from within the SAS/IML language? The following DATA step creates four
About a year ago (wow, has it been that long?), I posted an example program that lets you report on the contents of a SAS information map. Using my example, you can see the data items, filters, and folder structure within a given information map. Last week a reader posted
I’m an avid listener to BBC Radio 4, and have been for a good couple of decades. I wake up to the Today programme, the shipping forecast helps me sleep, and now – with the advent of podcasts – I listen to all my favourite programmes in the car and
As a marketer, we must constantly think about engagement and conversion strategies with our customers and prospects. Specifically, B2B digital marketers have been holding some of their best content hostage behind registration pages. Even though conversion numbers continue to dwindle, this tactic is still the cornerstone for lead generation. We
Readers' comments indicate that my previous blog article about computing the area under an ROC curve was helpful. Great! There is another common application of numerical integration: finding the area under a density estimation curve. This article provides an overview of density estimation and computes an empirical cumulative density function.
Many of you may be familiar with SAS Press author and consultant Don Henderson. Besides being the author of Building Web Applications with SAS/IntrNet: A Guide to the Application Dispatcher, Don is very active in the SAS user community--including being a frequent paper presenter and contributor to sascommunity.org. So, not
Contributed by Thornton May, IT Futurist On June 15, 2011 twenty plus analytic pioneers from twelve different vertical markets convened to explore the current state and future trajectory of enterprise analytics. Each participant in The SAS Power Series event brought with them intellect, energy, curiosity and a challenge. During the
I'm an avid listener to BBC Radio 4, and have been for a good couple of decades. I wake up to the Today programme, the shipping forecast helps me sleep, and now - with the advent of podcasts - I listen to all my favourite programmes in the car and
Our friend Martha Rogers recently blogged about her trip to Arkansas for a Walmart Analytics Day. She says, "I can tell you that up close, the folks here believe the customer is number one. It's even part of the 'cheer' that the hundreds of people here did. Loudly." You should
I have recently discovered “mind mapping.” Mind mapping is not a new concept, but since I (re)learned it, I’ve found it to be an excellent tool for analyzing business problems and processes. I thought you might find it interesting too! Here’s an example: The other day, I was thinking about
This is Part 4 of my response to Charlie Huang's interesting article titled Top 10 most powerful functions for PROC SQL. As I did for eaerlier topics, I will examine one of the "powerful" SQL functions that Charlie mentions and show how to do the same computation in SAS/IML software.
Is SAS doing the right things when it comes to multichannel campaign management? In a nutshell, this is the question Gartner asked and recently answered by naming SAS a leader in their latest research report: Gartner’s Multichannel Campaign Management Magic Quadrant. The report highlights our advanced optimization and analytical capabilities,
Today marks the first day of summer and the longest day of the year in the Northern Hemisphere. While I can't join the summer solstice celebration at Stonehenge, I can pay homage to some of our sizzling sellers. Many of you are probably familiar with or use some of these
As far as numbers go, the number zero is rather mysterious for data. Is it something or is it nothing? What happens when you have missing data but enter 0? This topic triggered an intriguing discussion in my recent Programming 2: Data Manipulation Techniques class. In this post I’d like
