Last week I showed how to use simulation to estimate the power of a statistical test. I used the two-sample t test to illustrate the technique. In my example, the difference between the means of two groups was 1.2, and the simulation estimated a probability of 0.72 that the t
Integrated marketing is a very broad view of marketing as a circular ecosystem that integrates people, processes and technologies in a process from concept/idea, through planning and resource allocation to execution, evaluation and analysis that feed back into ideas and planning. That definition comes from Gartner's "Magic Quadrant" report on Integrated Marketing Management.
One of the great things about SAS libraries is that you can write your programs to read and write data without having to worry about where the data lives. SAS data set on a file system? Oracle table in a database server? Hadoop data in Hive? For many SAS applications,
Data expert David Loshin (@davidloshin) delves into value pricing and customer analytics.
Einmal pro Monat fassen wir ab jetzt Studien, Videos und Veröffentlichungen über Big Data, Business Analytics und Datenvisualisierung für Sie zusammen. Das Wichtigste über den Umgang mit Daten in Unternehmen und datenbasierte Entscheidungen - im Web gefunden, zusammengetragen und ausgewählt von führenden Analysten, unseren Partnern und SAS-Experten. Zur aktuellen Ausgabe: "The
A SAS user told me that he computed a vector of values in the SAS/IML language and wanted to use those values on a statement in a SAS procedure. The particular application involved wanting to use the values on the ESTIMATE and CONTRAST statements in a SAS regression procedure, but
Die Big Data-Diskussion hat vielen Unternehmen vor Augen geführt, dass Daten mittlerweile zu einem wichtigen Produktionsfaktor geworden sind. Ohne eine gezielte und konsequente Strategie lässt sich der Wert, der in den Daten steckt, nicht heben. Gefragt sind methodische und organisatorische Weichenstellungen – unterstützt von Software, die den Brückenschlag zwischen Fachbereich
This week's SAS tip is from Gerhard Svolba and his latest book Data Quality for Analytics Using SAS. For additional bonus book content and to learn more about Gerhard and his work, visit his author page. The following excerpt is from SAS Press author Gerhard Svolba's book "Data Quality for Analytics Using SAS"
Some things are just common sense, and having common academic standards for all states is one of those things. In a national milestone event, 45 states and the District of Columbia recently coalesced around a common set of standards for math and English/language arts. The process did not happen overnight, and there
I can attest first-hand that the SAS bookstore was super busy at SAS Global Forum. I helped many customers find just the right book(s). Some users showed up with a general topic in mind, while others knew exactly what they wanted (often after hearing a book referenced during a paper). Now that
They say "Imitation is the most sincere form of flattery"... Therefore when I imitate Hans Rosling's famous world-data animation, it's not that I'm jealous, but that I'm paying homage to him! (OK, and maybe also a little bit jealous! LOL) Well, anyway, for those of you who haven't seen it,
The power of a statistical test measures the test's ability to detect a specific alternate hypothesis. For example, educational researchers might want to compare the mean scores of boys and girls on a standardized test. They plan to use the well-known two-sample t test. The null hypothesis is that the
Last time we saw two situations where you wouldn't bother trying to improve your forecast: When forecast accuracy is "good enough" and is not constraining organizational performance. When the costs and consequences of a less-than-perfect forecast are low. (Another situation was brought to my attention by Sean Schubert of
As a marketer interested in analyzing my campaign data visually, I recently had a chance to slow down and read this TDWI checklist report entitled “Seven Steps to Deploying Visual Analytic for Improving Actionable Insight” by Dave Stodder, Director of TDWI Research for Business Intelligence. What it helped me understand is
If you write a blog, you deal with spam comments. That's just part of the deal. Spammers are forever inventing new and creative methods for "tricking" you into accepting their spam comments. These comments have nothing to do with your blog topic but do contain trackback links to their own
Has anyone noticed that the REG procedure in SAS/STAT 12.1 produces heat maps instead of scatter plots for fit plots and residual plots when the regression involves more than 5,000 observations? I wasn't aware of the change until a colleague informed me, although the change is discussed in the "Details"
SAS Global Forum 2013 provided a platform for SAS to share its vision. If you couldn't make it to San Francisco, no problem, I have interviewed our key thought leaders to bring you their thoughts in a game of buzzword bingo. First up is Paul Kent, SAS' Vice President of Big Data. Paul
Pharmaceutical companies (“Pharma”) operate in a very complex environment – to begin with, their customer is usually referred to as “the patient” and it gets more complicated from there. The relationship between Pharma and the patient is not always a direct one, and whether or not the customer is “delighted” often
The Data Visualization Charting 101 seriesexplores different tools to visualize data. Check out other posts to see which data visualization is right for you. My grandmother often used the saying “as the crow flies” when giving directions, referring to a straight line being the shortest distance between two points. When
This week's SAS tip is from Ron Cody and his latest book Cody's Collection of Popular SAS Programming Tasks and How to Tackle Them. Learn more about this esteemed user and his many bestselling SAS books--as well as get additional bonus content on his author page. The following excerpt is from
If the popularity of one's blog can be measured by the number of comments received, then The BFD has become quite popular. Many of the comments are quite flattering, such as: Hello, I check your blog like еvery week. Үour writing style is wittу, keep doing ωhat you're doing! Vеry
Dylan Jones (@dataqualitypro) shares an example of why data quality should be a business-as-usual practice.
In my article "Simulation in SAS: The slow way or the BY way," I showed how to use BY-group processing rather than a macro loop in order to efficiently analyze simulated data with SAS. In the example, I analyzed the simulated data by using PROC MEANS, and I use the
What does big data know that you don't? It could be a new source of revenue, a budding consumer trend or ... something sinister! Find out what big data knows in this funny but telling video spot: Look familiar? Do you know that guy? Share this funny big data video
I recently read an interesting article in The Economist, where they describe "The Big Mac index." This is an index they invented as a lighthearted guide to compare currencies in different countries. In their article they create a multi-panel display (similar to a dashboard) where they compare the index for several countries using
Two years ago, Brad Pitt starred in Moneyball, an Academy Award-nominated story about Oakland A’s general manager Billy Beane bringing the power of advanced analytics to the sport. Beane wasn’t the first to use statistical analytics to build a successful team and keep its payroll in check. Baseball and political
Last week I discussed a program that had three nested loops that used scalar operations in the innermost loop. I mentioned that this program was not vectorized, and would therefore be slow in a matrix language such as SAS/IML, MATLAB, or R. I then went through a series of steps
Popular SAS blogger Rick Wicklin was recently interviewed by the Brazilian statistics site, estatisti.co about his new book, his background in mathematics, his advice for programmers and his dedication to blogging. Wicklin's answers are conveniently translated into English on the site, so you can read these - and other gems by checking out the full interview.
Let me begin by saying that I am a huge fan of Linkedin. To folks who do not know LinkedIn, I always describe it as a "serious social network." When you are on LinkedIn, you post the equivalent of your résumé, add other details, join groups that are usually professionally-oriented and connect with
The value of analytics to solve multiple business problems really makes analytics the ultimate reusable business investment, or as they say in the energy industry, it may be called a renewable resource. As I've commented before, organizations spend billions of dollars on storing data, and unless you happen to be a
