I first heard about Python pandas from a friend at RenTech or AQR in the early summer of last year. At the time, the project was little more than a documentation page and a few wrapper methods around numpy. Since then, pandas has matured into a very useful and featureful addition to numpy, scipy,
The NATO summit is currently being held in Chicago, and, as is typical for NATO or G# summits, the streets and tweets are full of dissent. In the spirit of my past investigations of online dissent (#jan25, #25bahman, #12fev, #wiunion, #cn220, #march15), I thought I would investigate the #nonato tag, where Twitter users around
In my last post on CloudSearch and eDiscovery, I described something like “Google” for eDiscovery emails. FedEx or DropBox your data to an eDiscovery service provider like myself, and rest assured that you’ll soon have a powerful, web-based user interface for searching and visualizing your digital discovery materials. As a technical follow-up to
When I put together my original post on the length and complexity of Congressional bills, I was hoping to build forward momentum on the project. The goal was to build a simple, sortable and searchable interface to explore and visualize the data. As usual, however, paying employers and consulting clients got in the way
In redis, every object is either a binary-safe string or collection thereof. Even if you're storing numbers from your client library or using the INCR/DECR counter within redis, the actual values are stored in memory as strings. In some cases, this may be fine; however, if you are storing many numbers, whole or decimal,
igraph is my preferred library for graph manipulation. The core library is written in C and is easy to extend, there are bindings to Python and R, and Gabor and Tamas are really nice and helpful guys. That said, I've always noticed that one stumbling block for users has been building the Python bindings with
Well, so much for that #march11 #Saudi day of rage. Whether it was really the "tempest in a teacup" that Prince Al-Waleed suggested on CNBC (video below, transcript here) or not, the oil complex and Saudi markets seem to have shrugged off much of the risk that was priced in after Thursday's rumors of shots.
Last night, I spent a few hours configuring a new OCZ Vertex 2 on my M4500, my primary workstation. It turns out the drive was a dud and I wasted nearly 10 hours rebuilding and debugging the issue, but during this process, I had the opportunity remember how valuable Christoph Gohlke's unofficial Python package site is.
Last week, I posted some R code that downloads the user and timestamp of tweets that contain a given hashtag going back as far as Twitter search will allow. As I noted in the post, the text of these tweets isn’t stored because of encoding issues with R and its JSON packages. A few people emailed asking
Out of all the visuals I’ve produced, I think the "coolest" is the three-dimensional U.S. Supreme Court citation network 1080p movie I produced with Dan Katz (close friend, coauthor, and newly minted law professor!). 3D networks, especially dynamic ones, really invoke the "wow" factor. Movies are especially important in dynamic cases too, since without the animation,
