graphics

hacking .gov shortened links

Jul 30, 2011 · 4 min read · analytics dataviz graphics hackathon R visualization ·

This past Friday, the web portal to the US Federal government, USA.gov, organized hackathons across the US for programmers and data scientists to work with and analyze the data from their link-shortening service. It turns out that if you shorten a web link with bit.ly, the shortened link looks like 1.usa.gov/V6NpL …

intuitive visualizations of categorization for non-technical audiences

Apr 25, 2011 · 8 min read · analytics dataviz ggplot2 graphics predictive R visualization statistics ·

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For a project I’m working on at work, I’m building a predictive model that categorizes something (I can’t tell you what) into two bins. There is a default bin that 95% of the things belong to and a bin that the business cares a lot about, containing 5% of the things. Some readers may be familiar with the use of …

ggplot and concepts -- what's right, and what's wrong

Mar 7, 2010 · 6 min read · ggplot2 graphics programming R ·

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A few months back I gave a presentation to the NYC R Meetup. (R is a statistical programming language. If this means nothing to you, feel free to stop reading now.) The presentation was on ggplot2, a popular package for generating graphs of data and statistics. In the talk (which you can see here, including both my …