Articles by Nathan

COVID-19 dashboard page now up

November 23, 2020 | Nathan

I aggregated the visualizations from my previous two posts on COVID-19 cases in Arkansas and the U.S. on a separate landing page. I wanted a quick place to look a few times a week at how my home state is handling the coronavirus pandemic (spoiler alert... [Read more...]

Animating U.S. COVID-19 hotspots over time

October 9, 2020 | Nathan

This is an extension of my previous post on visualizing COVID-19 in Arkansas, and the code used is similar. As such, I won’t bury the lede again by walking through the code first. Here’s the animation: Again, I’m using the plasma color palette from the viridis R ... [Read more...]

Visualization of COVID-19 Cases in Arkansas

September 29, 2020 | Nathan

Throughout the COVID-19 pandemic, the main sources of information for case numbers in the State of Arkansas have been daily press conferences by the Governor’s Office (until recently, when they moved to weekly) and the website I haven’t been particularly impressed with the visualizations used by ... [Read more...]

Leave-one-out subset for your ggplot smoother

August 8, 2018 | Nathan

I have a dashboard at work that plots the number of contracts my office handles over time, and I wanted to add a trendline to show growth. However, trendline on the entire dataset skews low because our fiscal year just restarted. It took a little trial and error to figure ... [Read more...]

Is GINA really about to die?!?

July 13, 2018 | Nathan

Introduction During a recent negotiation of an informed consent form for use in a clinical trial, the opposing lawyer and I skirmished over the applicability of the Genetic Information Nondiscrimination Act of 2008, commonly known as GINA. Specifically, the opposing lawyer thought that guidance issued by the U.S. Office for ... [Read more...]

Exercise dashboard

March 4, 2018 | Nathan

I posted a while back about using joy plots for heart rate data. Over the past couple of months, I grew tired of opening RStudio every time I wanted to look through my fitness tracker data. I decided to create a shiny dashboard that I can load via web browser. ... [Read more...]

Interactive BMI Chart

January 22, 2017 | Nathan

I was recently listening to the #WhoIsFat Joe Rogan podcast where comedians Bert Kreischer and Tom Segura had their weight loss challenge weigh-ins. The challenge was for both guys to get out of the “obese” category and into the merely “overweight” category. If one made it and the other didn’...
[Read more...]

Visualizing Arkansas traffic fatalities, part 4

October 24, 2016 | Nathan

This is the latest post in a series analyzing Arkansas traffic fatalities. Please take a look at parts 1 (a map of 2015 traffic deaths), 2 (heat maps of fatalities by day from 2000-2015), and 3 (heat maps of fatalities by day of week from 2000-2015) if you haven’t already. Visualizations Today’s ... [Read more...]

Visualizing Arkansas traffic fatalities, Part 3

October 16, 2016 | Nathan

This is the latest post in a series analyzing Arkansas traffic fatalities. Please take a look at part 1 (a map of 2015 traffic deaths) and part 2 (a heat map of all fatalities, both nationwide and in Arkansas, from 200-2015) if you haven’t already. Visualizations Today’s visualization piggybacks off part 2, ... [Read more...]

Visualizing Arkansas traffic fatalities, Part 2

September 30, 2016 | Nathan

A couple of weeks ago, I posted a map of the traffic fatalities in Arkansas in 2015. The data came from the NHTSA, and the graphic I posted was just scratching the surface. I’ve sliced the data a couple of different ways and created three more sets of visualizations about ... [Read more...]

Visualizing Arkansas traffic fatalities

September 15, 2016 | Nathan

Nathan here again with another guest post. I recently started a master’s program at UALR in information science, so I’ve been following several blogs on statistical programming and visualization. One of the best sites I’ve found is R-bloggers, which is dedicated to the popular statistical programming language ... [Read more...]

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