There is a data mining competition with a prize of $3,000,000. The target is to improve healthcare in US by identifying patients who will be admitted to a hospital within the next year, using historical claims data. The algorithm to … Continue reading → [Read more...]

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spider: Species identity and evolution is an R package developed by the Lincoln University molecular ecology lab group to do a range of analyses that various lab members wanted to run that were not yet implemented in R. In particular, the package provi... [Read more...]

I want to show how to combine various risk measures I discussed while writing the series of posts about Asset Allocation with backtesting library in the Systematic Investor Toolbox. I will use Minimum Variance portfolio as an example for this post. I recommend reading a good discussion about Minimum Variance ... [Read more...]

Services of a teaching assistant (TA) are required for a course in Applied Retail Research at Ryerson University in Toronto. The course will run from January to April 2012. Experience with statistical analysis  using R is required. For details on the course, please click HERE. To apply or read more about ... [Read more...]

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I may want to add a subtitle “Why R-Forge Must Die” (thinking of Barry Rowlingson’s talk earlier this year). I have been a GitHub user for two years, and I was mainly influenced by Hadley. Now I even feel a little bit addicted to GitHub (its slogan is “social ... [Read more...]

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The choropleth below (created by Baptiste Coulmont) is a sort of prosperity map of France: the blue areas have high levels of personal income (actually, median household income tax paid divided by the number of household members), while the red areas have the lowest: The map was created with the ... [Read more...]

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We perform a voter file analysis for Wake County, NC using R. [Read more...]

After attending two one-day workshops last week I spent most days paying attention to (well, at least listening to) presentations in this biostatistics conference. Most presenters were R users—although Genstat, Matlab and SAS fans were also present and not one … Continue reading → [Read more...]

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I am not a statistician but I use statistics, teach some statistics and write about applications of statistics in biological problems. Last week I was in this biostatistics conference, talking with a Ph.D. student who was surprised about this situation … Continue reading → [Read more...]

Regression Analysis ~about Long term data of earthquakes~ 1 Introduction I have attempted gaining a deeper und [...] [Read more...]

Links to slides and talks from useR 2011 - all organized in one page.Read more » [Read more...]

Kaggle is hosting an exciting new competition in which the object is to learn to identify sequences of gestures from just one example of each gesture. I would bet this competition has a lot of potential to attract academics interested in machine learni... [Read more...]

In Rescuing Twapperkeeper Archives Before They Vanish, I described a routine for grabbing Twapperkeeper archives, parsing them, and saving them to a local desktop file using the R programming language (downloading RStudio is the easiest way I know of getting R…). Following a post fron @briankelly (Responding to the Forthcoming ... [Read more...]

Dear R Programmers,I have tried to capture R capabilites in a single slide. I welcome your comments/suggestions on the same. [Read more...]