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Why SAS Enterprise Miner on demand is like Jennifer & other thoughts on learning data mining
A miracle has occurred and I have had time to spend evaluating two things that have been on my to-do list forever, JMP and SAS Enterprise Miner. Both of these products are produced by SAS and the first interesting point is that knowing SAS won’t really help at all. That isn’t to say that having…
Sphericity, Public Libraries & the Tea Party
In the shower this morning, I was thinking about how seldom true longitudinal designs meet the assumption of sphericity. This is the point where one of my daughters always makes a comment about what other people think about in the shower. I don’t want to hear it. Sphericity is an assumption that all correlations among…
Somewhat Smitten with AppSmitten
Every day, I get email asking me if I am interested in some affiliate program, link exchange, blah, blah, blah. Obviously, these people do not read my blog because I personally would question the wisdom of affiliating oneself with a person who has called a congressman a lying ass mother-fucker (I was right, too) and…
Statistics Prove Who is Dumber than a Rock
Anyone who has ever taught has probably had this experience … you are reading a student paper and think, “I really don’t understand what he/ she is trying to say here.” Like most professors, you probably assume that in these situations, the students aren’t very clear on the concepts themselves. You’re probably…
This Chart Should Bother You
This is the most depressing chart I have seen in a long time. Below are the results of our pretest on knowledge of fraction operations of 322 students in grades 3 through 7, attending schools on and adjacent to American Indian reservations. These are questions like, “Drag 6/1 to the correct spot on the number…
Packing 2012 Style
I’m taking off for two weeks on a working vacation defined as I will be working while the rest of the family is on vacation. I found it interesting that the list of what I NEEDED to do in getting ready was Go to the Apple store and pick up a 500 GB hard drive….