Uncategorized

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

0
3 things you should know about The Little SAS Book, Fifth Edition

You’ve known it, you’ve loved it. Your copy’s pages are worn, torn, or coffee-stained, and yet it’s still as beloved as ever. It’s your Little SAS Book. It belongs on every SAS programmer’s bookshelf, and it’s now even better. Susan Slaughter and Lora Delwiche have worked to help you improve