In the recent posts Visualizing Smoking Risk and Shades of grey I wrote about the use of “Risk Characterization Theatres” (RCTs) to communicate probabilities. I found the idea in the book The Illusion of Certainty, by Eric Rifkin and Edward Bouwer. Here is how they explain the RCTs: Most of us are familiar with the crowd in a
ables are pretty common in web pages as data sources, and the most direct way to get these data is probably to copy and paste. This is OK if there are only two or three tables, and when we need to grab 5000 tables in 1000 web pages, we may not really wish to fulfill
Writing an R script is one thing. Organizing your process: where to put the data, how to refer to files in scripts, how to run the scripts, and how to produce and collect and report the results; that's quite another. Every R user has their own workflow for doing data analysis with R, but the best workflows achieve the...
There is a lot of hype in media about Ponting's best days being behind him. While he's rebuilding a fresh Aussie team, everyone is putting more pressure on him by comparing his performance with Tendulkar's. Leave him alone!We have the privilege of watc...
There is a lot of hype in media about Ponting's best days being behind him. While he's rebuilding a fresh Aussie team, everyone is putting more pressure on him by comparing his performance with Tendulkar's. Leave him alone!We have the privilege of watc...
In our last installment we looked at stations which were pitch black. The case I examined, Middlesboro Kentucky illustrated 1. The station location data used by Hansen2010 has inaccuracies. 2. While the purported station location was pitch dark, nearby within a couple 1/100ths of a degree there were urban lights. What this example illustrated was 
As I described in this post, the reported number of homicides in Chihuahua during 2009 turned out to be incomplete. Guess what? The SNSP just released an updated version of the homicide data, and Chihuahua went from having 2,523 homicides to 3,156. My estimate was 3,256, so I came pretty...
As I described in this post, the reported number of homicides in Chihuahua during 2009 turned out to be incomplete. Guess what? The SNSP just released an updated version of the homicide data, and Chihuahua went from having 2,523 homicides to 3,156. My estimate was 3,256, so I came pretty...
For over a year now, i've been collecting how much time i spend in computer and how much of it is actually used in creative/productive activities. By productive activity i mean that the time spent in text editor(emacs), terminal, excel or a datab...
Last weekend, my friend and coauthor Jean-Michel Marin was interviewed (as Jean-Claude Marin, sic!) by a national radio about the probability of the replication of a draw on the Israeli Lottery. Twice the same series of numbers appeared within a month. This lotery operates on a principle of 6/37 + 1/8: 6 numbers are drawn 
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
