Update: I am aware the table of contents are being displayed in bullet form as I intended. The web template I'm using seems to be buggy. It also seems to think this page is in Indonesian...Working on it!
Table of Contents:
1465 search results for "map"
The Guerilla Guide to R
Playing cards, with R
In my courses on R, I usually show how to insert a picture as a background for a graph. But it is also to see the picture as an object, and to insert it in a graph everywhere we like to see it, as explained on the awesome blog http://rsnippets.blogspot.ca/…. (in a post published in January 2012). I wanted...
Omni test for statistical significance
In survey research, our datasets nearly always comprise variables with mixed measurement levels – in particular, nominal, ordinal and continuous, or in R-speak, unordered factors, ordered factors and numeric variables. Sometimes it is useful to be able to do blanket tests of one set of variables (possibly of mixed level) against another without having to
Eigen-analysis of Linear Model Behavior in R
This post is actually about replicating the figures in Otto and Day: A Biologist’s Guide to Mathematical Modeling in Ecology and Evolution. The figures I’m interested in for this post are Figures 9.1 and 9.2 in the chapter ‘General Solutions … Continue reading →
Incomplete Data by Design: Bringing Machine Learning to Marketing Research
Survey research deals with the problem of question wording by always asking the same question. Thus, the Gallup Daily Tracking is filled with examples of moving averages for the exact same question asked precisely the same way every day. &nb...
All About Spherically Distributed Regression Errors
(This article was first published on Econometrics Beat: Dave Giles' Blog, and kindly contributed to R-bloggers) This post is based on a handout that I use for one of my courses, and it relates to the usual linear regression model, y = Xβ...
Do Torontonians Want a New Casino? Survey Analysis Part 1
Toronto City Council is in the midst of a very lengthy process of considering whether or not to allow the OLG to build of a new casino in Toronto, and where. The process started in November of 2012, and set … Continue reading →
Writing from R to Excel with xlsx
Paul Teetor, who is doing yeoman’s duty as one of the organizers of the Chicago R User Group (CRUG), asked recently if I would do a short presentation about a “favorite package”. I picked xlsx, one of the many packages that provides a bridge between spreadsheets and R. Here are the slides from my presentation 
NYT uses R to investigate NFL draft picks
Last week, the New York Times published online an interactive tool to explore NFL draft picks, revealing the fact that there's not much relationship between an early pick and the star performers in the season: Kevin Quealy, graphics editor at the NYT, detailed the process behind creating this graphic on his chartsnthings blog. He and others on the graphics...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
