Monthly Archives: January 2012

Exploring the functions in a package

January 26, 2012
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Exploring the functions in a package

Sometimes it can be useful to list all the functions inside a package. This is done in the same way that you would list variables in your workspace. That is, using ls. The syntax is ls(pos = "package:packagename"), which is easy enough if you can remember it. Unfortunately, I never can, and have to type

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How to create the best Interactive R Language Online Learning Platform from the views of R community?

January 26, 2012
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How to create the best Interactive R Language Online Learning Platform from the views of R community?: R offers a breadth and depth in statistical computing beyond what is available in commercial closed source products. Yet R remains, primarily, a ...

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Hottest 100 for 2011

January 26, 2012
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Hottest 100 for 2011

Another year, another Australia Day. Another Australia Day, another Triple J Hottest 100. And that, of course, means an excellent excuse to  set R to work on the chart data. For those outside Australia, the Hottest 100 is a chart of the most popular songs of the previous year, as voted by the listeners of

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osmar – Don’t Miss this New R-Geo-Package!

January 26, 2012
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osmar – Don’t Miss this New R-Geo-Package!

The osmar-package enables you to retrieve all geographic elements of OpenStreetMap via its API.I.e., you can retrieve a street, river, state-boundary or whatever and use this as a spatial object in R.It's overwhelming thinking of the endless playg...

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Paper on org-mode and reproducible research

January 26, 2012
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Paper on org-mode and reproducible research

As I was talking recently about reproducible research, I have to post this. A new paper by Eric Schulte, Dan Davison, Thomas Dye, Carsten Dominik. If you haven’t heard about them, you haven’t been on the org-mode mailing list. They could be called the main contributors to org-mode and the part of org-mode called babel,

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Announcing the winners of the Applications of R in Business contest

January 25, 2012
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It's with great pleasure that the team at Revolution Analytics announces the winners of the inaugural "Applications of R in Business" contest: Grand Prize ($10,000): Shannon Terry and Ben Ogorek, Nationwide Insurance for 'A Direct Marketing In-flight Forecasting System' Runner Up Prize ($5,000): Jeffrey Breen, Atmosphere Research Group for 'Mining Twitter for Airline Consumer Sentiment' Congratulations to both winners,...

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Random matrix theory and APT’s daily global model

January 25, 2012
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Random matrix theory and APT’s daily global model

Someone emailed me recently and asked about how APT uses random matrix theory in their factor model. Another question I …Continue reading »

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ABC [PhD] course

January 25, 2012
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ABC [PhD] course

As mentioned in the latest post on ABC, I am giving a short doctoral course on ABC methods and convergence at CREST next week. I have now made a preliminary collection of my slides (plus a few from Jean-Michel Marin’s), available on slideshare (as ABC in Roma, because I am also giving the course in

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ESPN Prediction Performance for the NFL

January 25, 2012
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ESPN Prediction Performance for the NFL

Description:ESPN 'experts' predict the National Football League wins/losses each week.  The above chart shows the percentage of their correct guesses and an overall trend, week by week.Data:http://espn.go.com/nfl/picksAnalysis:The graph shows an i...

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RStudio v0.95 Released

January 25, 2012
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RStudio v0.95 Released

The final version of RStudio v0.95 is now available for download from our website (thanks to everyone who put the preview release through its paces over the last couple of weeks!). Highlights of the new release include: Projects — A new system for managing R projects that enables easy switching between working directories and per-project contexts

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