A SAS customer asked how to use SAS to conduct a Z test for the equality of two proportions. He was directed to the SAS Usage Note "Testing the equality of two or more proportions from independent samples." The note says to "specify the CHISQ option in the TABLES statement
Tomorrow is Independence Day, a federal holiday in the United States. Flags are displayed everywhere, especially in Washington, D.C., where I live. So let's have a little Fun with Flags! The current U.S. flag has 50 stars, one per state, with five rows of six stars interleaved with four rows
When I arrived for a training course with the name, "Powerful storytelling for tech," I was surprised to discover that most of the attendees worked in sales, rather than the marketing and communications crowd I'd been expecting. They were all there to learn how best to engage prospects – how
If you spend a lot of time in SAS Enterprise Guide (as I do), you probably get to know its features pretty well. But we don't always take the time to explore as we should, so there might be a few golden nuggets of editor knowledge that have escaped you
My colleague, Lisa, and I were comparing notes the other day. Both of us starting working in our teens (14 and 15 respectively) during the academic year as well as the summers. I worked at Sears in the drapery and bedspread department. I’ll never forget my first boss—Mr. Arnold. He
The Kettlebell (KB) clean is a multi-joint movement that incorporates a squat, a pull, and shoulder rotation. You will work to maximize momentum generated in the lower body to use your upper body while challenging core stability. This exercise requires a little coordination and precision, so take your time learning
Students in introductory statistics courses often use summary statistics (such as sample size, mean, and standard deviation) to test hypotheses and to compute confidence intervals. Did you know that you can provide summary statistics (rather than raw data) to PROC TTEST in SAS and obtain hypothesis tests and confidence intervals?
As a technical consultant for SAS, I have the privilege of meeting with SAS customers, learning more about how they use our software, and then helping them solve their problems. Recently, a client of mine was having trouble finding a way to implement the use of multiple application servers in
We live in exciting times. Our relationships with machines, objects and things are quickly changing. Since mankind lived in caves, we have pushed our will into passive tools with our hands and our voices. Our mice and our keyboards do exactly as we tell them to, and devices like the
In this blog post I’d like to explore how to create a custom group in SAS Viya to restrict access to functionality. To illustrate my points, we will create a report developers custom group and ensure that only users of that group can create reports and analysis in SAS Visual Analytics.
Choosing great colors for a graph is sometimes the most difficult part. And here is yet another thing you need to worry about ... sometimes colors represent different things in different cultures! In this blog post, I improve a graphic to help you get a grasp on those color-to-culture relationships.
David Loshin discusses big data identity resolution in a programming and execution environment.
I'm sure I'm not the only one who has read and contributed to threads on the internet about all the different languages used for data mining. But one aspect that's been left out of most of these comparisons is that SAS is more than a 4th generation programming language (4GL).
In my last blog, we examined the data pane in SAS Visual Analytics 8.1. That blog discussed how to have the data pane display the data items of your active data source, and how to perform tasks such as viewing measure details, changing data item properties, and creating geographic data items,
One of the big benefits of SAS Viya is how approachable it is for programmers of other languages. You don't have to learn SAS in order to become productive quickly. We've seen a lot of interest from people who code in Python, maybe because that language has become known for
Many of the regulations coming into effect after 2010, are the result of the financial crisis that has significantly re-shaped the financial industry worldwide and especially in Europe. One of the major projects that has been undertaken by the statistics team of the ECB, launched in 2011, is the setup
The average American household spends about 12.5% of income on food, with a shrinking margin of difference between money spent on groceries and at restaurants (57% versus 43%). With over 1 million restaurant establishments in the United States, it’s no wonder that dining out is now the norm rather than
Suppose you roll six identical six-sided dice. Chance are that you will see at least one repeated number. The probability that you will see six unique numbers is very small: only 6! / 6^6 ≈ 0.015. This example can be generalized. If you draw a random sample with replacement from
Summer is here, which means vacations and time at the pool with a good book. If expanding your knowledge is a goal of yours this summer, SAS has a shelf full of new titles becoming available over the next few months. From new editions of classics – such as SAS® for Forecasting
I've found that when supporting others it can be helpful to simply normalize that it's ok to feel two things at once. Usually, one of the two is more "taboo". "Of course you are feeling disappointed by your friend's actions. Being disappointed doesn't mean you are not appreciative of the positive aspects of your friendship." "Of course you
Let me start by posing a question: "Are you forecasting at the edge to anticipate what consumers want or need before they know it?" Not just forecasting based on past demand behavior, but using real-time information as it is streaming in from connected devices on the Internet of Things (IoT).
In a previous blog, I demonstrated a program and macro that could identify all numeric variables set to a specific value, such as 999. This blog discusses an immensely useful technique that allows you to perform an operation on all numeric or all character variables in a SAS data set.
Matthew Magne describes how SAS Data Quality can help you build a trusted data foundation, one stone at a time.
When I teach my Data Cleaning course, the last topic I cover in the two-day course is SAS Integrity Constraints. I find that most of the students, who are usually quite advanced programmers, have never heard of Integrity Constraints (abbreviated ICs). I decided a short discussion on this topic would
You can use a range attribute map to control the mapping of values in a continuous variable to colors. This post shows you how to use PROC SGPLOT to display multiple plots in the same graph and use range attribute maps.
The role of analytics in combating terrorism Earlier this spring, I found myself walking through a quiet and peaceful grove of spruce trees south of the small hamlet of Foy outside of Bastogne, Belgium. On travel in Europe, I happened to have some extra time before heading to London. I
The new government’s vision of Brexit is to make the UK a more international, more outward looking nation. One whose future success and status in on the world stage will be dictated by the ability to attract investment and finance, and to drive trade with existing and new partners. Yet
My presentation at SAS Global Forum 2017 was "More Than Matrices: SAS/IML Software Supports New Data Structures." The paper was published in the conference proceedings several months ago, but I recently recorded a short video that gives an overview of using the new data structures in SAS/IML 14.2: If your
To demonstrate the power of text mining and the insights it can uncover, I used SAS Text Mining technologies to extract the underlying key topics of the children's classic Alice in Wonderland. I want to show you what Alice in Wonderland can tell us about both human intelligence and artificial
A new book from SAS guides public sector leaders in the use of data to address a wide range of state and local government challenges. Each chapter deals with critical issues facing our country, including the opioid epidemic, child abuse, spiraling health care costs, prison overcrowding, education reform, rampant fraud and the
