Tag: Statistics

UN World Statistics Day

We’re told that SAS no longer stands for Statistical Analysis System, but it’s still used for an awful lot of statistical analysis. So, it’s worth noting that tomorrow (Wednesday October 20th) has been named World Statistics Day (WSD) by…

Multi-study research on Bovine respiratory disease

Situation:The purpose of this research was to (1) to explore a recent multi-study approach (Arends, et al. 2008) in combining observational survival data instead of traditional meta-analysis, and (2) to develop multivariate random-effects models with o…

It’s a Math, Math World

Here is a blog that I found. It belongs to Michael O’Brien. I have not had a chance to really read through any of his posts, but it is on my to-do list as soon as I have a little tiny bit of time. Based on my quick cursory view of it, he seems to be…

SAS goes with sparse matrices

SAS has introduced experimental procedure HPMIXED (High Performance MIXED) in version 9.2. This is a welcome addition and now SAS could probably solve the problem I encountered lately with a large mixed model described here. I really like R and its com…

Slick spline plot in SAS

Here is an example of a slick spline (using penalized b-splines) plot in SAS. The plot is created with SGPLOT procedure. I hope SAS will add such “functions” also to model based procedures such as GLM, MIXED, GENMOD, …

SAS Macros for BUGS

Rodney Sparapani wrote some SAS macros for interfacing with BUGS. Here is a site with descriptions and links. See also “SAS now goes with Bayesian methods”.

SAS now goes with Bayesian methods

New versions of SAS (9.2) procedures GENMOD, LIFEREG, and PHREG enable users to use Bayesian approach for estimating model parameters. The computations are done with McMC methods. There is also a new experimental procedure MCMC. See more here. I wonder…

A Great Blog From A SAS User

I just checked out Ann Maria’s Blog from the Julia Group and was so impressed with her writing that I had to share it. I particulary liked The Dangers and Wonders of Statistics Using SAS post.Go check it out. Now.