The series plot is a popular way to visualize response data over a continuous axis like date with a group variable like treatment. Here is some data I made up of a response value by date, treatment, classification and company that makes the drug. The data is simulated as shown in the attached program
What if virtual reality technology allowed you to immerse yourself in big data? That could be your future – and sooner than you think. It happened in August 2013 at the University of Washington: the first direct brain-to-brain communication, with one researcher controlling another researcher’s brain over Skype. Maybe in
As we saw last time with Steve Morlidge's analysis of the M3 data, forecasts produced by experts under controlled conditions with no difficult-to-forecast series still failed to beat a naive forecast 30% of the time. So how bad could it be for real-life practitioners forecasting real-life industrial data? In two words:
This year’s conference moves to San Diego, and it’s packed with great learning, networking and fun things to do. I’ve had a small part in the planning, but the bulk of the work is being done by a very hard-working group of volunteers. If you want to be a part of
Over the past few months, many US states and districts have received data about student growth and teacher effectiveness. Some educators experience the excitement of outstanding scores and, most importantly, the success of their students’ growth. Some quietly plug along, satisfied to be meeting growth targets and deciding if it isn’t broken,
In our hyper-connected world, information technology plays a key role in nearly every field and industry. Higher education is no exception, and that’s where EDUCAUSE comes in. This non-profit association works to advance higher education through the use of information technology. One of the primary ways EDUCAUSE achieves its goal
Super foods have been all the rage for the past few years. We’ve all heard about certain super foods that are darlings in the media like kale, blueberries, acai berries and salmon to name a few. What about other super foods that maybe aren’t so sexy like sardines, organ meats,
The Spring 2014 issue of Foresight includes Steve Morlidge's latest article on the topic of forecastability and forecasting performance. He reports on sample data obtained from eight business operating in consumer (B2C) and industrial (B2B) markets. Before we look at these new results, let's review his previous arguments: 1. All
Solving the mystery of Malaysia Airlines Flight 370 hinges on the finding the plane's black boxes, or flight data and cockpit voice recorder. An airplane’s black box is something we hope never has to be used, but when there’s a problem, we sure are glad that it’s there. The black
Just one last short article about properties of the Hilbert matrix. I've already blogged about how to construct a Hilbert matrix in the SAS/IML language and how to compute a formula for the determinant. One reason that the Hilbert matrix is a famous (some would say infamous!) example in numerical
As I was doing my taxes, I wondered where the government is spending my tax dollars. And being a SAS user, I decided to find out using a graph ... I did a few Google searches on "tax graphs" and found one on the CNN web site that I liked - it
The call for papers is open for all 2014 US regional users conferences. A few deadlines are just around the corner, and you won’t want to miss them! WUSS 2014 – May 5 SESUG 2014 — May 19 MWSUG 2014 — June 13 SCSUG 2014 — June 30 Spring is a difficult time
I’ve been to a fair number of SAS User Group International (SUGI) and SAS Global Forum conferences over the years, but I don’t think I’ve been to one as productive, well-organized and fun as this year’s conference in Washington DC. Part of what made the conference very relevant for many
Analytics gives us not just the ability but the imperative to separate our planning activities into two distinct segments – detailed planning that leads to budgets in support of execution, and high-level, analytic-enabled business/scenario planning. My critique of Control Towers in this blog last time led me not only to
Principle 3: Accuracy and Integrity – A bank should be able to generate accurate and reliable risk data to meet normal and stress/crisis reporting accuracy requirements. Data should be aggregated on a largely automated basis so as to minimize the probability of errors. It seems logical that banks would want
I have previously written about the scope of local and global variables in the SAS/IML language. You might wonder whether SAS/IML modules can also have local scope. The answer is no. All SAS/IML modules are known globally and can be called by any other modules. Some object-oriented programming languages support
Often, the topic of an article is motivated by a question from a user. A satisfactory resolution of the situation is usually a good indication of a topic that may be of interest to other users. On such question was posed to me by a user this weekend. He wanted to display fit
Some very common questions we receive into Technical Support are, “I need to be able to send the data for every hospital listed in my data set to a separate .csv file. How can I do that?” Or, “How can I run a PROC REPORT for each region listed in
Here is editor Len Tashman's preview of the new Spring 2014 issue of Foresight. In particular note the new article by Steve Morlidge of CatchBull, reporting on an analysis of eight B2B and B2C companies, which we'll discuss in a separate post. An organization’s collaboration in forecasting and planning has
When you run a program or task in SAS Enterprise Guide, the application wraps your job in an "ODS sandwich", the colloquial term we use for the ODS statements necessary to create output that can be viewed in your project. That's convenient for exploring and refining your program, but at
Recently, as I was driving in listening to National Public Radio (NPR), the topic of conversation was Edward Snowden and the National Security Agency (NSA), again. If you’ve been listening to any of this coverage, it seems the news media has a new catch word “metadata” that they are throwing
Q: How would you set the target for demand planners: all products at 0.7? All at practical limit (0.5)? A: In principle, forecasts are capable of being brought to the practical limit of an RAE of 0.5. Whether it is sensible to attempt to do this for all products irrespective
Last week I described the Hilbert matrix of size n, which is a famous square matrix in numerical linear algebra. It is famous partially because its inverse and its determinant have explicit formulas (that is, we know them exactly), but mainly because the matrix is ill-conditioned for moderate values of
I'm in the grocery store with a "mental" list of 3 items to pick up: bread, eggs, and something unusual like cupcake liners. My phone rings. It's my wife (or sometimes a daughter) asking me to pick up one or two more things, maybe orange juice and bananas. Suddenly, the
Principle 2: Data architecture and IT infrastructure – A bank should design, build and maintain data architecture and IT infrastructure which fully supports its risk data aggregation capabilities and risk reporting practices not only in normal times but also during times of stress or crisis, while still meeting the other
The SAS Users Groups Leaders meet-up was scheduled for the last evening of SAS Global Forum 2014, sandwiched between the last of the Tuesday presentations and the Kick-Back Party later that evening. There were a few familiar faces from regional users groups but lots of new ones from local and
I enjoy blogging about new functionality in the SAS/IML language because I can go into more depth and provide more complicated examples than the SAS/IML documentation. Today's article is a summary of all of my posts about features that were added to SAS/IML 12.1, which shipped in August 2012 as
When you hear of a Scatter Plot or a Series Plot, you have a picture in your mind what we are talking about. But one of the plot statements available in GTL, and soon with SGPLOT, is the BLOCK plot. I am sure this leaves many users scratching their heads, wondering
In this tutorial video, you will learn to print a simple listing with Base SAS. You see how to write a PRINT procedure step to display a SAS data set. You also see how to use statements and options to subset observations and variables and enhance the report. Learn
Yesterday I blogged about the Hilbert matrix. The (i,j)th element of the Hilbert matrix has the value 1 / (i+j-1), which is the reciprocal of an integer. However, the printed Hilbert matrix did not look exactly like the formula because the elements print as finite-precision decimals. For example, the last
