If you have data where the observations are not independent due to nesting or clustering, you may need a multilevel model. Another scenario that would require a multilevel model is if you have data where observations have been gathered multiple times on the same subject (a.k.a., longitudinal data or repeated
“It’s not about how much money you make but to work on stuff that matters," according to Tim O’Reilly, founder of O'Reilly Media. At the recent Tools of Change conference, Tim O’Reilly mentioned during his keynote that writers tend to be motivated to work on “stuff that matters.” Through SAS
A big part of "winning" these days (be it sports or a business) is performing analytics better than your competition. This is demonstrated in awe-inspiring fashion in the book (and movie) "Moneyball." And on that topic, I'd like to show you a few ways SAS can be used to analyze sports data
It’s early March and one of these days, the snow will melt here in Minnesota, the ice will disappear from the lakes, and spring will arrive. On my list of things to do this spring is a third edition of SAS Macro Programming Made Easy. It’s time to update the
I've heard many customers ask "Can SAS do/use/handle census block maps?" My answer was "of course!" ... but I never really had any examples to show/prove that. Well, now I do! :) First, you need to locate & download the shape files for the census blocks you're interested in plotting. For
I, (INSERT NAME HERE), being a data scientist of moral standing and noble intentions, do solemnly swear the following on pain of being banned from ever using a logistic regression again: When faced with an individual untrained in advanced statistics or machine learning, I shall not belittle, condescend, or otherwise
Have you used a rhyme or spelling mnemonic to help you remember the spelling of a word? For me, the memorable, “i” before “e” except after “c” rhyme quickly comes to mind. Another memory tip I use is with the spelling of the word, stationery, as opposed to the word
This week's tip is from Robert Carver and his book Practical Data Analysis with JMP. If you're a JMP user, be sure to take a look at additional bonus content from the book. The following excerpt is from SAS Press author Robert Carver and his book "Practical Data Analysis with JMP". Copyright © 2010, SAS
I'm sure that most of you have seen the really cool interactive Baby Name Voyager, right? If not, go have a look and try it out (be sure to plug in your name, and the names in your family, and so on). Here's a screen-capture: That's a pretty cool application! ...
This week's tip is from Michael Raithel and his classic book The Complete Guide to SAS Indexes. Michael has a wealth of SAS experience and is a frequent and sought-out speaker at SAS Global Forum and regional user group conferences. If you get the opportunity to hear him speak, don't
