Monthly Archives: January 2012

Penny pinching yields pennies

January 26, 2012
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Penny pinching yields pennies

A Greek Professor of Economics has written up a thought-provoking series of articles on complexity fetishism. As part of his …Continue reading »

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Parallel R Model Prediction Building and Analytics

January 26, 2012
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Modifying R code to run in parallel can lead to huge performance gains. Although a significant amount of code can easily be run in parallel, there are some learning techniques, such as the Support Vector Machine, that cannot be easily parallelized. However, there is an often overlooked way to speed up these and other models. It involves executing the...

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A Short Example with R-Package osmar..

January 26, 2012
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A Short Example with R-Package osmar..

Following up my last post in which I praised the capabilities of the osmar-package I give a short example...ps: You can also find this example at GitHub HERE.library(osmar) # this pulls the data from the OSM-Api:mydistrict <- get_osm(relation(85647)...

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Creative Commons license

January 26, 2012
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Creative Commons license

Copyright notice: I hereby release all of the writing  content that is tagged by R, under the cc-by-sa copyrights (date: Jan 26 2012), as long as the copied content comes with proper attribution which also  includes a link to the source of the article .

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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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