Blog Archives

Leave-one-out subset for your ggplot smoother

August 8, 2018
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Leave-one-out subset for your ggplot smoother

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 out how to exclude the most recent year’s count...

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Is GINA really about to die?!?

July 13, 2018
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Is GINA really about to die?!?

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the opposing lawyer thought that guidance issued by the U.S. Office for Human Research Protections in 2009 was now outdated, in...

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Exercise dashboard

March 4, 2018
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Exercise dashboard

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. This involved setting up a shiny server in a...

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Interactive BMI Chart

January 22, 2017
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Interactive BMI Chart

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’t, the loser would pay for a trip to Paris...

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Visualizing Arkansas traffic fatalities, part 4

October 24, 2016
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Visualizing Arkansas traffic fatalities, part 4

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 post is probably my favorite of this...

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Visualizing Arkansas traffic fatalities, Part 3

October 16, 2016
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Visualizing Arkansas traffic fatalities, Part 3

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, in that we further explore the relationship of...

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Visualizing Arkansas traffic fatalities, Part 2

September 30, 2016
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Visualizing Arkansas traffic fatalities, Part 2

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 that data. For the next three posts, I’ll show...

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Visualizing Arkansas traffic fatalities

September 15, 2016
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Visualizing Arkansas traffic fatalities

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 R. A recent post on R-bloggers by Lucas Puente on mapping traffic...

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