I’ve been told I have rocks for brains before, but right now I have rocks on the brain – the kind that are millions of years old and contain precious stores of oil and gas. One reason I have petroleum on my mind is that I’ve just returned from Brazil, where
Do you know the way to San Jose? By now, SAS users are getting to know the way to the Western Users of SAS Software’s (WUSS) annual event on September 3-5, 2014. Although this is the third time WUSS has been held in San Jose at The Fairmont Hotel, this
It is common in statistical graphics to overlay a prediction ellipse on a scatter plot. This article describes two easy ways to overlay prediction ellipses on a scatter plot by using SAS software. It also describes how to overlay multiple prediction ellipses for subpopulations. What is a prediction ellipse? A
