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SAS Administrators
Christina Harvey 0
Demystifying SAS autoexec files

Recently, I shared a summary of Brian Varney’s SESUG presentation on How to document your SAS environment. One important step was determining where files that control overall processing, such as autoexec.sas files, are deployed.   For installations on a single server or platform, Varney suggested using the OPTIONS procedure, which lists

Analytics | Fraud & Security Intelligence
Greg Henderson 0
"Financial fraud is the dominant crime of this millennium"

Several weeks ago, South Carolina was the victim of what some experts believe to be the largest cyber-attack against a state tax department in history. Approximately 3.6 million personal South Carolina income tax returns were exposed, and nearly 657,000 businesses compromised, in an international hacking attack. Coincidentally, SAS and the SC

SAS Events
Christina Harvey 0
Too much CLASS for the MEANS procedure

Have you used the MEANS procedure to calculate frequencies: for several variables in the same step? without sorting the data first? without checking for missing values? using the TYPE statement and the CLASS statement together? At the recent SouthEastern SAS Users Group conference, Janet Willis shared what can go wrong

Analytics
John Stultz 0
Federal policy on improper payments spurs need for high performance analytics

Recently, top executives from SAS gathered in Washington, DC with customers and other interested parties to discuss the potential impact of "big data" and high-performance analytics on the U.S. government. Topics included cyber-attack strategies, health care, bio-surveillance, border security and of course, fraud and improper payments. On the heels of

Data Management
David Sweenor 0
Adventures in the Hadoop zoo

For some odd reason, the open-source Apache Hadoop ecosystem consists of cleverly named components that seem to have escaped from the Central Park Zoo.  You may be aware that the little yellow elephant named Hadoop was actually a stuffed toy that Doug Cutting’s son owned. (Doug is the co-creator of

Learn SAS
Rick Wicklin 0
Beware the naked LOC

The LOC function is one of the most important functions in the SAS/IML language. The LOC function finds elements of a vector or matrix that satisfy some condition. For example, if you are going to apply a logarithmic transform to data, you can use the LOC function to find all

Rick Wicklin 0
Efficient acceptance-rejection simulation

A few days ago on the SAS/IML Support Community, there was an interesting discussion about how to simulate data from a truncated Poisson distribution. The SAS/IML user wanted to generate values from a Poisson distribution, but discard any zeros that are generated. This kind of simulation is known as an

SAS Events
Waynette Tubbs 0
PROC ARIMA: Penetrating the matrix

Justin Smith and William “Gui” Zupko were looking at manufacturing data over time and wanted to know the minimum value in their dataset, and they wanted to pinpoint its exact location – the specific row and column. PROC ARIMA uses the ARIMA (auto-regressive integrated moving average) model or the ARMA

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