Maëlle's R blog

Not a fish

Lintr Bot, lintr's Hester egg

Remember my blog post about automatic tools for improving R packages? One of these tools is Jim Hester’s lintr, a package that performs static code analysis. In my experience it mostly helps identifying too long code lines and missing space, although it’s a bit more involved than that. In any case, lintr helps you maintain good code style, and as mentioned in that now old post of mine, you can add a lintr unit test to your package which will ensure you don’t get lazy over time.

Now say your package has a lintr unit test and lives on GitHub. What happens if someone makes a pull request and writes looong code lines? Continuous integration builds will fail but not only that… The contributor will get to know Lintr Bot, lintr’s Hester (Easter) egg!

Storrrify #satRdayCapeTown 2018

One week ago I was in Cape Town for the local satRday conference, where I had the honor to be one of the two keynote speakers, the other one being sports analytics extraordinaire Stephanie Kovalchik (You can read Stephanie Kovalchik’s account of the conference in this blog post). It was a fantastic experience! The event was very well organized, and 100% corresponds to its description as a “one day conference packed with R goodness”. You can watch all talks on Youtube. In my talk, I presented rOpenSci onboarding system of packages and… wore a hard hat!

It’d be a bit hard for me to really write a good recap of satRday that’d do it justice! Instead, I’ll use rtweet and a bit of html hacking to storrrify it (like Storify, but in R) using my live tweets!

hrbrpkgs: list Bob Rudis' packages

Recently I needed to count lines of code for a project at work work (this is an expression of the person honored in this post), and happened to discover that Bob Rudis had started an R package wrapping the Perl CLOC script. Of course! He has packages for a lot of things! And he’s always ready to help: after I asked him a question about the package, and made a pull request to renew its wrapped CLOC script, he made it all pretty and ready-to-go!

He himself defined his Stack Overflow Driven-Development (SODD) workflow in a blog post: someone will ask him a question on Stack Overflow, and he’ll write a long answer eventually becoming a package, that will or will not make it to CRAN… Which is the motivation of this blog post. How can I output a list of all packages Bob has on GitHub?

Combine your hex stickers with magic(k)

Hex stickers remind me of Pogs, except they’re cooler because you can combine them together! Some people do that very smartly.

I’ve got a pretty random hex stickers combination on my laptop, but after all it could be worse…

Now since I’m a magick/collage fan, you can bet I’ve wondered how to use R in order to combine stickers automatically! Say I have a bunch of sticker PNGs, how could I produce a map to design my laptop style? Read to find out more…