Blog Archives

Introducing DohaR – A new R User Group in Doha, Qatar

May 8, 2016
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Introducing DohaR – A new R User Group in Doha, Qatar

I’m starting a new R User Group in Doha, Qatar.  Our first meetup is on 26th May, at the HBKU Student Center in Education City.  I’ll be talking about run-time testing with my assertive package, and there will be two other speakers who I need to find pretty sharpish.  (If you want to talk, get

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Big package update: assertive is now 16 packages; new pathological also on CRAN

October 9, 2015
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Big package update: assertive is now 16 packages; new pathological also on CRAN

One of the bits of feedback that I got from the useR conference was that my assertive package, for run-time testing of code, was too big. Since then I’ve been working to modularise it, and the results are now on CRAN. Now, rather than one big package, there are fifteen assertive.* packages for specific pieces

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Qatar R User Group

September 15, 2015
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Qatar R User Group

Microsoft have announced new funding for R User Groups (Python and Hadoop too), so now seems as good a time as any for me to stop procrastinating and set up a Qatar R User Group. If you live anywhere near Doha, and are interested in coming along to a (probably monthly) meetup about R, then

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R packages with unlimited licenses

August 26, 2015
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R packages with unlimited licenses

I had an interesting email today saying that developers at the writer’s company wanted to use one of my packages, but weren’t allowed because it was under an unlimited license. I release quite a few of my packages under an unlimited licence, at least for toy projects and immature packages. In those cases, letting users

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New version of assertive and answers to tutorial exercises

July 16, 2015
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New version of assertive and answers to tutorial exercises

I gave a tutorial at useR on testing R code, which turned out to be a great way of getting feedback on my code! Based on the suggestions by attendees, I’ve made a big update to the package, which is now on CRAN. Full details of the new features can be access in the ?changes

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The state of assertions in R

July 3, 2015
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The state of assertions in R

“Assertion” is computer-science jargon for a run-time check on your code. In R , this typically means function argument checks (“did they pass a numeric vector rather than a character vector into your function?”), and data quality checks (“does the date-of-birth column contain values in the past?”). The four packages R currently has four packages

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From cats to zombies, Wednesday at useR2015

July 1, 2015
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From cats to zombies, Wednesday at useR2015

The morning opened with someone who I was too bleary eyed to work out who it was. Possibly the dean of the University of Aalborg. Anyway, he said that this is the largest ever useR conference, and the first ever in a Nordic country. Take that, Norway! Also, considering that there are now quite a

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How I made every tech company that I may ever want to work for in the future hate me, or “GO R Consortium!”

June 30, 2015
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How I made every tech company that I may ever want to work for in the future hate me, or “GO R Consortium!”

It turns out that when people tell you things, you should listen. Like when Joe Rickert of Microsoft says “this is not news, please don’t repeat what I’m about to say”, you should maybe take note and keep your mouth shut. I’m not quite sure how I missed that, but I did. So on Sunday

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Everyone loves R markdown and Github; stories from the R Summit, day two

June 28, 2015
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Everyone loves R markdown and Github; stories from the R Summit, day two

More excellent talks today! Andrie de Vries of Microsoft kicked off today’s talks with a demo of checkpoint. This is his package for assisting reproducibility by letting you install packages from a specific date. The idea is that a lot of R packages, particularly those from PhD projects don’t get maintained, and suffer bitrot. That

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The Workflow of Infinite Shame, and other stories from the R Summit

June 27, 2015
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The Workflow of Infinite Shame, and other stories from the R Summit

At day one of the R Summit at Copenhagen Business School there was a lot of talk about the performance of R, and alternate R interpreters. Luke Tierney of the University of Iowa, the author of the compiler package, and R-Core member who has been working on R’s performance since, well, pretty much since R

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