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The Apple iPhone 3G was released here a couple of weeks ago. I've held out a long time getting a modern phone and the iPhone ticks many of the boxes I've been waiting for. Though as I've waited this long, I'm happy to watch how the costs settle and pick the best option for me. The selected carriers have been slow to announce pricing, but now that it's out, I see that it really isn't all that attractive.
So in order to justify a new phone purchase, I decided to do a little research into my current mobile phone habits. Knowing how and when I use my current phone places me in a much more informed position when comparing the available options. Fortunately, Virgin Mobile provide a detailed call history to browse. Unfortunately however, with so much data easily available, I got a little carried away with the analysis.
What follows turns out to be a real-world tutorial on using Excel, Python and R to extract meaning from a table of data.
