Matt Roumaya

Matt Roumaya

I’m a Data Analyst at the National Board of Medical Examiners. My goal is to share trivial and occasionally useful R content, learn from and connect with others in the data community, and contribute to open source. I live in Philadelphia with my amazing wife Molly, our two cats, Mango and Phil, and our dog Donut.


  • R
  • Data Analysis & Visualization
  • Survey Design & Research
  • Coffee, death metal, vegan baking, sometimes running

Recent Posts

52 Different Ways to Rename a Column in R

I haven’t posted for a while, and came across a tweet from Angie Jones that I really related to. I ran into a basic configuration issue and couldn't find a solution online.


The past few months of work-life have been constantly busy with survey design and analysis. COVID has really changed the landscape for just about everything, and leaders of projects and departments want and need to implement change quickly, and survey research is helping to inform speedy decision making.

Tidying The Survey Monkey Doubleheader

SurveyMonkey 🐒 is a popular online survey development software that outputs a very frustrating kind of response file. If you’ve ever received exported results from SurveyMonkey, you probably know what I’m talking about.

Infinite Rummy in the Age of Quarantine

In these unprecedented times, my wife Molly and I have been playing infinite rounds of Rummy ♠️ ♥️ ♣️ ♦️. Since I don’t have any high-quality posts yet (and probably won’t any time soon💩), I’m just going to graph our endless rounds until we’re out of the weeds.