When I was running out to the airport, I said I would explain how to get a single plot of all of your scatter plots with SAS. Let’s see if I can get this posted before the plane lands. Not likely but you never know …
It’s super simple
proc sgscatter data=sashelp.heart ;
matrix ageatdeath ageatstart agechddiag mrw / group= sex ;
And there you go.
Statistical graphics from 10,000 feet. Is this a full service blog or what?
As I said in my last post, repeated measures ANOVA seems to be one of the procedures that confuses students the most. Let’s go through two ways to do an analysis correctly and the most common mistakes. Our first example has people given an exam three times, a pretest, a posttest and a follow up…
Yesterday I posted the code to get the problem, now here is where we check it. As I said yesterday, may way of programming is to knock out something that works and then go back and make it work better, like a first draft for a journal article. So, this is my first draft. Keep…
The census now allows more than one race to be checked. For many years, friends of mine in inter-racial couples when they registered their children for school would check the “Other” box for race, rather than pick black or white. Although an individual’s census form responses are confidential, you certainly are free to tell anyone…
I had the pleasure of attending a lecture Rand Wilcox gave on the state of research. He was far more amusing than I expected from a statistician (perhaps this reflects low self-esteem on my part). He made the very valid point that all statisticians learn in the infancy of their careers that the general linear…
I’m always a bit bemused when people refer to me as a “SAS expert”. I don’t think of myself as an expert at anything except, perhaps, bricolage, a word I am indebted to sascommunity.org for even being aware of its existence. Merriam-Webster defines it as: : construction (as of a sculpture or a structure of…
When we started the Dakota Learning Project to evaluate our educational games, I wondered if we had bitten off more than we could chew. We proposed to develop the games, pilot them in schools, collect data and analyze the data to see if the games had any impact. We were also going to go back…