This code was used to demonstrate the features of the data.table package at the R User Group meetup held in Chicago on February 7th, 2013.

I used two sets of data:

1. Some data that I generated
2. Data from a data visualization project

Example 1: http://chicagodatascience.com/public/Example_1_-_Fridge_Monitor.html

Example 2: http://chicagodatascience.com/public/Example_2_-_26th_and_Calif.html

After putting together an electronic device to monitor the temperature of my refrigerator, I discovered that it didn't work consistently. It would run, crash, restart... and each time it would start a new file. Still, I wanted to know if some basic things were working. Specifically, did each file start at 1 second, and how long the files run before crashing.

Although this isn't the most exciting example in the world, it does show some nice features of the data.table package. Especially, the rbindlist function.

The data and project related to this exmaple comes from another meetup and code project. I attended that meetup, and put together some simple visualizations for inspiration. These visualizations were intended to be used as talking points for the project. I repurposed this data to provide some data.table examples.

Meetup group: http://www.meetup.com/The-Chicago-Data-Visualization-Group/events/97690642/
Github project related to meetup: https://github.com/sc3/26thandcalifornia
My project related to that meetup: https://github.com/geneorama/26_and_California
Original meetup example: http://chicagodatascience.com/public/26th_and_California_example_visualizations.html