Data Visualization

Using R — A Script Introduction to R

October 17, 2012 | 0 Comments

To many people, R is like the Everglades. They’ve heard of it, they know it’s big and has amazing treasures deep inside. Articles in the media can make it look irresistible. But after a personal or even second hand experience …  &#16... [Read more...]

Automatic drug utilization reports with R and ggplot2

September 18, 2012 | 0 Comments

This program takes a data set of drug utilisation of 4 fictional drugs in 10 fictional hospitals and plots each time-series with a locally weighted regression (Lowess) trend line. It also places an time-series trend of the usage for each … Continue reading → [Read more...]

Learning R has really made me appreciate SAS

July 25, 2012 | 0 Comments

For the past 18 months, it seems like all I’ve heard about in the digital marketing industry is “big data”, and with that, mentions of using Hadoop and R to solve these sorts of problems.  Why are these tools the … Continue reading →Learning R has really made me appreciate SAS ... [Read more...]

Are scatterplots too complex for lay folks?

May 23, 2012 | 0 Comments

Usually, I like to write about the solutions to problems I’ve had, but today I only have a problem to write about. This is the second research job I’ve had outside of academia, and in both cases I’ve met with … Continue reading → [Read more...]

Bar Graph Colours That Work Well

May 17, 2012 | 0 Comments

Ever since I started using ggplot2 more often at work in order to do graphs, I’ve realized something about the use of colour in bar graphs vs. dot plots: When I’m looking at a graph displayed on the brilliant Viewsonic … Continue reading → [Read more...]

Fun Editing R Graphs in Inkscape

April 12, 2012 | 0 Comments

Last week, I read a chapter out of Visualize This by Nathan Yau.  I was, of course, delighted to see that he was championing the use of R.  One really cool thing that I learned from his book, and was very … Continue reading → [Read more...]

SNA: Visualising an email box with R

August 10, 2011 | 0 Comments

Are statistics sexy? Visualising social networks certainly is! I wrote a little function, which makes producing beautiful plots depicting a mailbox with R an extremely easy task. I find visualisations of ‘social graphs’ particularly appealing. They look like flowers. I … Continue reading → [Read more...]

Tumblr Likes

April 11, 2011 | 0 Comments

Look at just the first digit and the number of digits. science: 32914, 11566, 4989, 3743, 968, 814, 673, 482, 286, 2811 black and white: 1694, 1167, 1108, 988, 919, 639, 596, 591, 580, 544 lol: 22627, 18100, 17688, 14374, 13459, 12045, 4711, 3779, 36... [Read more...]

Visualizing Agricultural Subsidies by Kentucky County

December 12, 2010 | 0 Comments

In this post,  I provide results from my first full blown application of R to read, merge, clean, subset, manipulate, analyze and visualize data related to agricultural subsidies by Kentucky counties. This is very similar to the work I do on a daily basis, and was a great test of ...
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Here is how to improve your charts, graphs, maps, and…

October 2, 2010 | 0 Comments

Here is how to improve your charts, graphs, maps, and plots: Erase non-data ink. Erase redundant data ink. Maximize the ratio of data to ink. Show data variation, not design variation. The surface area of graphical elements should be directly proportio... [Read more...]


August 13, 2010 | 0 Comments

After a month of on-again, off-again coding, I’ve finally completed a web site geared towards calculating the Value at Risk of the average investor’s portfolio. The site is The big idea was to combine the statistical and visualization tools of R (especially ggplot2) with the web ...
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Prototype: More Web-Friendly Visualizations in R

June 12, 2010 | 0 Comments

I've spent some more time thinking about how best to put together the package for creating web-friendly, interactive data visualizations in R. I have a pretty substantial JavaScript package that does a lot of basic visualizations now, and it's really exciting to see where this is going. With this in ... [Read more...]

Canadian CPI: Visualization Brainstorm

May 27, 2010 | 0 Comments

After finishing the R prototype for data visualization, I've started abstracting the various methods necessary to create beautiful graphs. While there's no preliminary version of the R package yet, I think I've taken a number of exciting steps. These include: Abstracting graph objects. Objects such as lines, scatter plots, and ... [Read more...]

Prototype: Web-Friendly Visualizations in R

May 18, 2010 | 1 Comment

Developing web-friendly data visualizations is not very difficult, though as far as I know, a package that allows one to do this directly in R does not exist (e-mail me if you know of one). As someone who has been developing lots of data-oriented software tools, it's always nice to ... [Read more...]

Eight R Video Tutorials on VCASMO

February 4, 2010 | 0 Comments

Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit Thanks to Drew Conway (@drewconway), a PhD student at New York University, there are now eight excell... [Read more...]

Three Must-Have Books on Data Visualization

February 3, 2010 | 0 Comments

Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit Disclosure As you probably know, I live in the Portland, Oregon area and have for many years. One of ... [Read more...]
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