In our last blog we explored the potential impact of missingness in data in terms of its impact on models which require complete case analysis. We took a simple view that data was missing with an equal, independent, probability for any given model input. This week we explore cases where
People love rankings. You've probably seen articles about the best places to live, the best colleges to attend, the best pizza to order, and so on. Each of these is an example of a ranking that is based on multiple characteristics. For example, a list of the best places to
What kind of movement do you hunger for? Yes, I said hunger for…what kind of movement would bring you joy? Maybe it’s a quick “snack” of restorative yoga postures, a set of barbell squats for “dessert”, or just a “side” of dancing for 5 minutes in the living room. Perhaps
During the pandemic, millions of people have made the leap to digital banking. Identity analytics can help banks provide a delightful customer experience while keeping fraudsters out in the cold. Fraud is often seen as a cost centre for banks, but there’s an opportunity for fraud teams to become a
Many cities have Open Data pages. But once you download this data, what can you do with it? I'm going to download several datasets from Cary, NC's open data page, and try to give you a few ideas to get you started on your own data exploration! And what data
As a huge road cycling fan, one of my favorite Olympic events is track cycling. With its speed and intensity, it is such a captivating set of events. While some events are sprint-focused and others are more endurance-focused, they all require powerful physical abilities, great bike-handling skills, cunning tactical expertise
Welcome to my SAS Users blog series CAS Action! - a series on fundamentals. I've broken the series into logical, consumable parts. If you'd like to start by learning a little more about what CAS Actions are, please see CAS Actions and Action Sets - a brief intro. Or if
Demand management concepts are now over 30 years old. The first use of the term "demand management" surfaced in the commercial sector in the late 1980s and early 1990s. Before that, the focus was on a more siloed approach to demand forecasting and planning that was manual and used simple
SAS System Engineer Sophia Rowland reveals how to embed decision flows into webpages and applications using the Microsoft Power Platform for a better customer experience.
Just over a year ago, SAS and Microsoft announced their strategic partnership. Since then we have been working together to provide the best experience and value to our customers as they migrate to the cloud. Here are six milestones you should know about; each highlights the early success of the two industry giants. The start of
The first few months with a newborn are a whirlwind of sleepless nights, diaper changes and feedings (all wrapped up in lots of baby snuggles though😊). After spending 9+ months focusing on eating the right foods and getting certain nutrients, new moms often shift this energy to taking care of
One of the benefits of using the SWEEP operator is that it enables you to "sweep in" columns (add effects to a model) in any order. This article shows that if you use the SWEEP operator, you can compute a SSCP matrix and use it repeatedly to estimate any linear
I’m not ok and that is ok. One thing that I have learned from doing seminars on parenting with SAS employees across the globe this year is that none of us, no matter what country we live in or what language we speak, are ok. We have moments when we
What makes something easy (or difficult) to forecast? This question was answered by Prof. Rob Hyndman on the Forecasting Impact podcast (February 6, 2021), and it's worth a look at his response. Rob was recently named a Fellow of the International Institute of Forecasters, and is someone who is known
This post demonstrates how to rank data and how to place these ranks into roughly equal groups. There are certain variables, such as annual salary, that are highly skewed. There are many who earn between $50,00 and $150,000, but some who earn millions or hundreds of millions of dollars a
Curious about what it’s like to work at SAS? You’re in the right place. Our people are always asking, “What if?” and pushing the boundaries of innovation, and their curiosity is at the core of our company. Today, Lenny Goldman, Sr. Strategic Account Executive in Sales, is sharing his passion for serving our customers and how his
SAS' Ghohui Wu shows you how to construct spatial weights matrices based on contiguity and distance measures, then shows how PROC CSPATIALREG automates spatial regression model selection.
In the previous section of this series we discussed ways of assessing the relationship between variables. This week we change the focus to the shape and sparsity of our dataset. One area of Explanatory Data Analysis which we’ve missed so far is the impact of missingness in data. Having missing
Underperforming schools can cast a shadow over the community. Not only do students suffer, but the downstream effects of poor performance can be felt across school funding, teacher retention, morale and the local economy. When one of the top 20 K-12 school districts in the US received a “C” ranking
Do you ever use a permutation matrix to change the order of rows or columns in a matrix? Did you know that there is a more efficient way in matrix-oriented languages such as SAS/IML, MATLAB, and R? Remember the following tip: Never multiply with a large permutation matrix! Instead, use
I'm excited to curate a series of posts focused on CAS Actions. However, before I dive into details and code, I thought I'd take a moment to lay a foundation for a better understanding of CAS and CAS actions. I'll cover things here at a high level as there's quite
I'm excited to bring a series of posts centered on CAS Actions. The topics in the list below will be covered in posts set to publish in the next few weeks. Please check back often for new releases. CAS Actions and Action Sets - a brief intro - Introduction to the
Unstructured text data is ubiquitous in both business and government and extracting value from it at scale is a common challenge. Organizations that have been around for a while often have vast paper archives. Digitizing these archives does not necessarily make them usable for search and analysis, since documents are
Breastfeeding. Exercise. You don’t usually see these two words together, but motherhood is like that – a beautiful dance of balancing necessity with fun, effort with ease, joy and tears. In honor of World Breastfeeding Awareness Month, we’re talking breastfeeding here on SAS Life. Today’s topic: Breastfeeding and Exercise. Can
The predicted “Great Resignation” is underway, with the US Labor Department reporting people quitting jobs in record numbers, with 4 million doing so in April alone. At the same time, companies are expected to step up hiring, with 77 percent of executives in a recent poll claiming they plan to
In a previous article, I discussed a beautiful painting called "Phantom’s Shadow, 2018" by the Nigerian-born artist, Odili Donald Odita. I noted that if you overlay a 4 x 4 grid on the painting, then each cell contains a four-bladed pinwheel shape. The cells display rotations and reflections of the pinwheel. The
In the previous section of this series we looked at basic summary statistics. In this article we start to consider the relationships between variables in our dataset. As part of your Explanatory Data Analysis it is worth looking for correlation between variables. Generally, when referring to correlation we mean the
Thousands of SAS users are migrating from SAS University Edition to SAS OnDemand for Academics (ODA). I thought I would share some of my thoughts, having just finished two books using ODA (Getting Started with SAS Programming: Using SAS Studio in the Cloud and A Gentle Introduction to Statistics Using
Within both the business world and our personal lives, data is becoming increasingly intrinsic to everything we do. Whether it’s picking which restaurant to order from, a tailored advert or figuring out the quickest route home, data is a part of our everyday decision making. For businesses, the value of
Art evokes an emotional response in the viewer, but sometimes art also evokes a cerebral response. When I see patterns and symmetries in art, I think about a related mathematical object or process. Recently, a Twitter user tweeted about a painting called "Phantom’s Shadow, 2018" by the Nigerian-born artist, Odili
