r

Docker and R – Talk for the Greater Cleveland R Group

I was able to give a talk recently to the Greater Cleveland R Group about using Docker and R together. Docker is a virtualization platform that uses OS-level virtualization to provide containers. It’s pretty neat, so I wanted to share the talk here. Big thanks to Tim Hoolihan for both organizing the R User Group in Cleveland, and also filming and nicely editing my video when part of the presentation unexpectedly did not work.

September 4, 2017 Read

Intro to Shiny – Talk for the Greater Cleveland R Group

I was able to give a talk recently to the Greater Cleveland R Group about Shiny, the R package that lets you build web apps for data visualization and analysis using R. It’s a pretty neat package, and I wanted to share my slides, code, and presentation here. My thanks to Gaurav Narain Saxena for recording the presentation for me! Code Slides

June 27, 2015 Read

Write your own! On having better habits as an R programmer

I contribute responses to Stack Overflow pretty frequently. I like answering well-written questions and enjoy that it keeps my skills sharp. However, one area of annoyance for me on Stack Overflow is that many answers start with something like: “You can do this using the <package name> package” - even when the task at hand can be handled in base R. For many posters, that’s probably not a big deal, but I find myself getting those answers occasionally on my questions, even when I explicitly ask for base R solutions.

June 9, 2015 Read

Using match() to recode in R

Nice and simple write-up on how to do this; reposting because I happen to be doing it tonight!

October 25, 2012 Read

R Tip – Directly Access the REDCap API from R

Note: As will be obvious, this example comes from a Windows XP platform. I stumbled across this earlier and thought it would be a useful statistics tip to share with the world. Those of you working in health care research may already know about REDCap, which stands for Research Electronic Data Capture. It’s a project out of Vanderbilt University that’s designed to improve research by allowing easy creation of “databases”. I say that loosely because each project is basically a single table, with little in the way of relational structures.

July 14, 2011 Read