Advanced Analytics

Move beyond spreadsheets to data mining, forecasting, optimization – and more

Advanced Analytics
Rick Wicklin 0
Compute the log-determinant of a matrix

The determinant of a matrix arises in many statistical computations, such as in estimating parameters that fit a distribution to multivariate data. For example, if you are using a log-likelihood function to fit a multivariate normal distribution, the formula for the log-likelihood involves the expression log(det(Σ)), where Σ is the

Advanced Analytics
Alison Bolen 0
SAS loves math: Paul T. Savarese

“We may not see it but math is everywhere around us,” says Paul T. Savarese, Technical Support Statistician at SAS. You don’t have to be a statistician to enjoy this interview, in which Savarese discusses target shooting, Jay Leno and Guinness beer – and ties it all back to the fascinating subject

Advanced Analytics
Alison Bolen 0
Data mining, forecasting or optimization?

What's the difference between data mining, forecasting and optimization? When should you use each technique, and how do they interact?  Jeremy TerBush, Vice President of Global Analytics, Wyndham Exchange and Rentals explains that he uses all techniques  together in an overall predictive process. "Data mining is first step in the system,"

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