Monthly Archives: August 2014

A Conversation with Hadley Wickham – the useR! 2014 interview

August 11, 2014
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hadley_Untitled

Hadley Wickham is famous. He’s not Kardashian famous, but walking around useR! and seeing the community’s reaction to him, there’s no question, he’s ‘R famous’. If you have the good fortune to see his talks, tutorials, or sessions in person, you owe it to yourself to do so.

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EARL Conference, London, 15-17 September 2014

August 11, 2014
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EARL Conference, London, 15-17 September 2014

A final reminder that the EARL (Effective Applications of the R Language) Conference is only a month away; the conference will be held in London from the 15-17th September. EARL is the first conference dedicated to the widespread and growing use of R commercially and features presentations from R gurus such as Hadley Wickham and R business experts from companies...

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Announcing our ambassadors program

August 11, 2014
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In the last 12 months we traveled all over the world delivering talks and hands on workshops at various conferences and universities. This was a great opportunity for us to raise awareness for the project and get more of you involved as contributors and collaborators. As we scale the project to the next level, we need your help in...

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Minimal reproducible examples

August 10, 2014
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I occasionally get emails from people thinking they have found a bug in one of my R packages, and I usually have to reply asking them to provide a minimal reproducible example (MRE). This post is to provide instructions on how to create a MRE. Bug reports on github, not email First, if you think there is a bug,...

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ABC model choice by random forests [guest post]

August 10, 2014
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ABC model choice by random forests [guest post]

This paper proposes a new approach to likelihood-free model choice based on random forest classifiers. These are fit to

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What your twitter friends say about you and your interests

August 10, 2014
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What your twitter friends say about you and your interests

This post is first in a series that looks at the inferences you can make using social media data. The …Continue reading →

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Fracking in your neighborhood? Shale- Oil and Gas Economic Impact Map

August 10, 2014
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Fracking in your neighborhood? Shale- Oil and Gas Economic Impact Map

I have been working on a visualisation to highlight the results from my paper Fracking Growth, to highlight the local economic impact of the recent oil and gas boom in the US.  There are two key insights. First, there are strong spillover effects from the oil and gas sector. I estimate that every oil and

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To cooperate of defect (besides of coding): Prisoners dilemma, a game theory example in R

August 10, 2014
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To cooperate of defect (besides of coding): Prisoners dilemma, a game theory example in R

Hello Computer Science and/or R enthusiasts.This week I had the opportunity to try something that was in my To-Do list a while ago. The idea came almost instantly after reading Dr. Richard Dawkins book, The Selfish Gene (which was a BD gift, thanks Andy).I feel the obligated necessity to program my own implementation of the prisoners dilemma and...

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Ploting SEMs in R using semPlot

August 10, 2014
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Ploting SEMs in R using semPlot

This is a short post presenting the great package semPlot developed by Sacha Epskamp (check out his nice website: http://sachaepskamp.com/) to make nice plots from your SEMs. SEMs are a modelling tool that allow the researcher to investiguate complex relationships between the variables, you may find here many links to free tutorials: http://www.structuralequations.org/. Here I

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Guns are cool – Regions

August 10, 2014
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Guns are cool – Regions

This was supposed to be a post in which General Social Surveys (GSS) data were used to understand a bit more about the causation of differences between states. Thus it was to give additioanl insight than my previous post; Guns are Cool - Differenc...

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