[Read more...]

I’m recruiting a Research Software Engineer to join my team at EcoHealth Alliance in New York. Details and how to apply can be found at https://www.ecohealthalliance.org/career/research-software-engineer. [Read more...]

I’m recruiting a Research Software Engineer to join my team at EcoHealth Alliance in New York. Details and how to apply can be found at https://www.ecohealthalliance.org/career/research-software-engineer. [Read more...]

For a number of reasons I’ve been trying out GitLab as a replacement for for both GitHub and various continuous integration systems, and have been exploring configurations useful for model-fitting pipelines. I turned one of these into an example repository that shows how to use GitLab together with the ... [Read more...]

For me, the task of building a personal website is fraught with so many of my technical, aesthetic, and personal hangups that I hadn’t updated mine since mid-graduate school. Thanks to consistent pestering by Maëlle, though, I finally got around to re-building this one using a modern toolkit. ... [Read more...]

Since June, we have been highlighting the many projects that emerged from this year's rOpenSci Unconf. These projects start many weeks before unconf participants gather in-person. Each year, we ask participants to propose and discuss project ideas ahead of time in a GitHub repo. This serves to get creative juices ... [Read more...]

Last Friday at the Davis R Users’ Group, Mallory Johnson gave a presentation on RQDA, an R-based GUI tool for doing coding on documents for use in qualitative text analysis. Here’s the video, and you can view the slides here [Sorry about reverb in the video] Resources The RQDA ... [Read more...]

Last Friday at the Davis R Users’ Group, Grace Charles gave a presentation on structural equation modeling in R using the Lavaan package. Here’s the video and her slides. We’ve also posted Grace’s script from the presentation as a gist here. More resources that Grace mentioned in ... [Read more...]

A couple of weeks at the Davis R Users’ Group, Jaime Ashander gave a presentation on and visualizing and diagnosing (G)LMMs in R. Here’s the video: Jaime also wrote up the notes from his talk, including all the code, on his blog here (with the raw R Markdown ... [Read more...]

Today at the Davis R Users’ Group, Michael Koontz gave tour de force lesson in using R’s base graphics capabilities to plot data. Here’s the video: Get Michael’s excellent annotated script, which covers much more than we got to during our tutorial, here. [Read more...]

[Read more...]

Today, Ryan Peek and Michele Tobias gave an introduction to making maps in R. Here’s the webcast: (Pardon the little scuffle at the beginning and as we switched computers halfway through. Still getting the hang of hangouts.) Resources: Download all of Ryan’s code and HTML files here. See ... [Read more...]

*Today, Carl Boettiger gave a tutorial on the ROpenSci project and how to use their many packages to connect to online data repositories to retrieve and up deposit data. Here’s our screencast of the talk. All the code from this talk is available at this github repository, and you ... [Read more...]

Today, Tim Bowles gave this presentation on the vegan package to the Davis R Users’ Group. The screencast and slides are below. You can also download Tim’s RStudio project with all the code, data, figures, and slides presented here. Thanks to Tim for a great session! [Read more...]

Cross-posted from the Software Carpentry Blog. For the past two years I’ve run the UC Davis R Users’ Group (D-RUG). In this post, I’ll (1) outline the structure of D-RUG, and (2) summarize some lessons learned, and (3) discuss how such users’ groups could act to support and complement SWC’s ... [Read more...]

In my first pass at text analysis of the ESA program, I looked at how the frequency of words used in the ESA program differed from last year to this year. There are much more sophisticated ways at looking at word use in text, though, and I began to dive ... [Read more...]

After my last post text-mining ESA Annual Meeting abstracts, Nash Turley was interested in the presence of the term “natural history” in ESA abstracts. I decided to collect a little more data by including programs back to 2010, giving a five-year data set. Thankfully the program back to 2010 remains in mostly ... [Read more...]

ESA is just around the corner, and many of us are gearing up and trying to figure out a schedule to cover all the talks and people we can pack in. ESA is a big conference and there’s far too much for any one person to see. In the ... [Read more...]

Here are my notes from a recent talk I gave on vectorization at a Davis R Users’ Group meeting. Thanks to Vince Buffalo, John Myles White, and Hadley Wickham for their input as I was preparing this. Feedback welcome! Beginning R users are often told to “vectorize” their code. Here, ... [Read more...]

Today at the Davis R Users’ Group, Bonnie Dixon gave a tutorial on the various ways to handle dates and times in R. Bonnie provided this great script which walks through essential classes, functions, and packages. Here it is piped through knitr::spin. The original R script can be found ... [Read more...]