It has been a while since I got to announce a new community for SAS users. Our latest community contains great information targeted at users of SAS Drug Development. This community deviates from our usual offering. The SAS Drug Development Forum …
Citing R or SAS
One of us recently read a colleague’s first draft of a paper, in which she had written: “All analyses were done in R 2.14.0.” We assume we’re preaching to the converted here, when we say that the enormous amount of work that goes into R needs to be re…
User Groups: Wisconsin-Illinois User Conference was Great!
Last week I attended the Wisconsin-Illinois User Conference in Milwaukee, WI. It was great! If you are new to SAS user conferences are a great way to get more training and if you are a seasoned SAS…
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SAS & IWA: Check the Logs
When testing Integrated Windows Authentication (IWA) based client connections to SAS® platform servers, it is well worth checking the SAS logs to verify the connections are being made the way you expect. SAS has a variety of methods up it’s …
Where to find what? A guide to SAS resources
Having recently written my first blog post on the SAS Users Groups blog with the QUEST to Learn SAS article I have become inspired to share more with the SAS community outside of Brisbane, Queensland, Australia. At our last QUEST (Queensland Users Expl…
Example 9.36: Levene’s test for equal variances
The assumption of equal variances among the groups in analysis of variance is an expression of the assumption of homoscedasticity for linear models more generally. For ANOVA, this assumption can be tested via Levene’s test. The test is a function of …