Mapping Hotspots with R: The GAM

October 25, 2011 | 0 Comments

I've been getting a lot of questions about the method used to map the hotspots in the seasonal drunk-driving risk maps.  It uses the GAM (Geographical Analysis Machine), a way of detecting spatial clusters from two data inputs: the data of interes...
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The cranky guide to trying R packages

February 13, 2011 | 0 Comments

This is a tutorial on how to try out a new package in R. The summary is: expect errors, search out errors and don’t start with the built in examples or real data. Suppose you want to try out a novel statistical technique? A good fraction of the time ... [Read more...]

Updating meteorological forecasts, part 1

November 7, 2010 | 0 Comments

As Mark Twain said "the art of prophecy is very difficult, especially about the future" (well, actually I am not sure Mark Twain was the  first one to say so, but if you're interested by that sentence, you can look here). I have been rather su... [Read more...]

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