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LA R Users: Mar Meeting 2021

Photo of
Hosted By
George G Vega Y. and 4 others


LA R Users Group will have our March meeting online on Zoom (

Talk 1

In this talk, attendees will get an introduction to writing command-line interfaces in R. The talk begins with a discussion of fundamental command-line topics like managing output streams, exit codes, and environment variables. After that, the talk will explain each argument to the "Rscript" executable. The talk will then describe how to write your own R programs that take in command-line arguments, using builtin functions like `commandArgs()` and external packages like {argparse} and {crayon}. The talk concludes with a demo of two R command-line interfaces used in the {lightgbm} project: one for running linting with {lintr} in continuous integration and one for building a C++ library using CMake. Sample code will be available on GitHub prior to and following the talk.

Speaker: James Lamb

James Lamb is an engineer at Saturn Cloud, where he works on a team building a managed Dask + Kubernetes product. He is a maintainer on {lightgbm}, and has made many contributions to other open source data science projects, including {xgboost} and prefect. He is also a maintainer and co-author of two other packages on CRAN: {pkgnet} and {uptasticsearch}. He holds masters degrees in Applied Economics (2014) and Data Science (2018). Before joining Saturn, he worked as an IoT Data Scientist at Amazon Web Services and Uptake.

Talk 2

While working remotely, I often have client projects where RStudio is unavailable for data security reasons or otherwise. R is feature-rich environment for terminal users as well, and I will discuss the underappreciated
functions around highlighting, graphics, editor integration, and other nice-to-haves for day-to-day
usage of the terminal.

Speaker: Neal Fultz

Neal Fultz is a long-time friend of the LA RUG/Tech community. Check out his Github or his past talks at

6:20 Open Zoom
6:25 Breakout room social
6:30 James
7:00 Neal
7:20~8:00 Q&A and social (Combined)

Code of Conduct:

LA R Users Group
Invite yourself to our Slack group:
Ask us any questions by email:
Find our previous talks on GitHub:
Follow us on Twitter: @la_Rusers
Check out more events:

***** DON'T BE SHY *******
Reach out if you want to be our speaker. First-time speakers are welcome

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