Monthly Archives: July 2014

Who wants to disrupt R training and R education?

July 28, 2014
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Who wants to disrupt R training and R education?

Using EdTech applications as an academic, R trainer or training company is no longer a unique selling proposition, but a must-have commodity. In this post, we introduce the new DataCamp course creation tools for academics, trainers and enterprises, and make a call to those interested in using these tools. More information via [email protected] Everyone involved in academic teaching

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Cigarette and life expectancy

July 28, 2014
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Cigarette and life expectancy

Yesterday evening, I uploaded a graph, with the labor productivity as a function of coffee consumption. Of course, it was for fun ! With this kind of regression, base on aggregated data, we can say almost anything, since most of them are correlated because of some (hidden) common factor, such as the wealth of the country. For instance, with...

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Analyzing package dependencies and download logs from Rstudio, and a start towards building an R recommendation engine

July 27, 2014
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Analyzing package dependencies and download logs from Rstudio, and a start towards building an R recommendation engine

In this post, I will focus on the analysis of available R packages and the behavior of its users. In essence, this involves looking at the data in two different ways (1) relationships among available R packages in CRAN and (2) tracking the behavior of R users through download logs on CRAN mirrors. I will

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Coffee and Productivity

July 27, 2014
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Coffee and Productivity

On Twitter, I was asked if there were serious research papers published on coffee consumption and labour productivity. There are some papers on coffee breaks and productivity, e.g. Productivity Through Coffee Breaks, but I could not find anything on coffee consumptions. Since I could not find any dataset with personal consumption (maybe I should start keeping tracks of my own consumption...

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Shifting Centre of Gravity of US Fossil Fuel Production

July 27, 2014
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Shifting Centre of Gravity of US Fossil Fuel Production

My research Fracking Growth investigates the localised impacts of the current oil and gas production boom in the US. The boom is triggered by extraction of oil and gas deposits, that were previously not possible to exploit. The shale deposits have become technologically recoverable due to a combination of horizontal drilling technology and hydraulic fracturing, which

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Guns are Cool – States

July 26, 2014
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Guns are Cool – States

Last week I looked at time effects of the shootingtracker database. This week I will look at the states. Some (smaller) states never made it on the database. Other states, far too frequently. The worst of these California. After correcting for populati...

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User Request – Shepards Classification of Sediments

July 25, 2014
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User Request – Shepards Classification of Sediments

I received a request overnight on how to render the Shepard’s classification diagram, which is an alternative to the USDA’s textural soil classification. This is quite simple to produce (albeit a little tedious), however, before I walk through the script, immediately below, please see the final result (which you can compare to an original). The The post

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A Few Notes on UseR! 2014

July 25, 2014
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A Few Notes on UseR! 2014

It has been a month since the UseR! 2014 conference, and I'm probably the last one who writes about it. UseR! is my favorite conference because it is technical and not too big. I have completely lost interest in big and broad conferences like JSM (to me, it has become Joint Sightseeing Meetings). Karl has written two blog posts...

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library() vs require() in R

July 25, 2014
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library() vs require() in R

While I was sitting in a conference room at UseR! 2014, I started counting the number of times that require() was used in the presentations, and would rant about it after I counted to ten. With drums rolling, David won this little award (sorry, I did not really mean this to you). Ladies and gentlemen, I've said this before:...

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A package about nothing

July 25, 2014
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A package about nothing

nothing is a package about nothing. The idea is that when you do require(nothing) you express that you don't need anything, and therefore nothing assumes you are fine just using the base package, so it detaches all other packages. > loadedNamespaces() "base" "datasets" "devtools" "digest" ...

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